diff --git a/工具/文本文件/metadata.txt b/工具/文本文件/metadata.txt
index 084edaae..cc317c1c 100644
--- a/工具/文本文件/metadata.txt
+++ b/工具/文本文件/metadata.txt
@@ -1,242 +1,682 @@
-usages
+ans
 
-021739
-20230425	2025届高一11班	0.976
+13287
+$2$
 
-021740
-20230425	2025届高一11班	1.000
+13288
+$a>2$
 
-021741
-20230425	2025届高一11班	0.976	0.976	1.000	0.976
+13289
+$89$
 
-021742
-20230425	2025届高一11班	0.857
+13290
+$[-1,2]$
 
-021743
-20230425	2025届高一11班	0.774
+13291
+$12$
 
-021744
-20230425	2025届高一11班	0.929
+13292
+$\dfrac{3\sqrt{2}}{4}$
 
-021745
-20230425	2025届高一11班	0.952	0.833
+13293
+$16$
 
-021746
-20230425	2025届高一11班	0.809
+13294
+$\arctan \dfrac{\sqrt{6}}6$
 
-021747
-20230425	2025届高一11班	1.000
+13295
+$\dfrac 56$
 
-021748
-20230425	2025届高一11班	0.929
+13296
+$\dfrac{\sqrt{5}}{3}$
 
-021739
-20230425	2025届高一12班	1.000
+13297
+A
 
-021740
-20230425	2025届高一12班	1.000
+13298
+B
 
-021741
-20230425	2025届高一12班	1.000	1.000	1.000	0.951
+13299
+C
 
-021742
-20230425	2025届高一12班	0.951
+13300
+(1) $a=4$; (2) 证明略
 
-021743
-20230425	2025届高一12班	0.878
+13301
+(1) $[k\pi+\dfrac\pi 3,k\pi+\dfrac{5\pi}6]$, $k\in \mathbf{Z}$; (2) $A=\dfrac\pi 3$, $b=2$, $S=2\sqrt{3}$
 
-021744
-20230425	2025届高一12班	0.915
+13302
+$(-\infty,0)\cup (1,+\infty)$
 
-021745
-20230425	2025届高一12班	0.951	0.890
+13303
+$\dfrac 32$
 
-021746
-20230425	2025届高一12班	0.890
+13304
+$12\pi$
 
-021747
-20230425	2025届高一12班	0.927
+13305
+$-\dfrac 43$
 
-021748
-20230425	2025届高一12班	0.854
+13306
+$\dfrac 3{16}$
 
-021739
-20230425	2025届高一01班	1.000
+13307
+$y=2x-\mathrm{e}$
 
-021740
-20230425	2025届高一01班	1.000
+13308
+$5$
 
-021741
-20230425	2025届高一01班	1.000	1.000	0.951	0.976
+13309
+$4\pi$
 
-021742
-20230425	2025届高一01班	0.988
+13310
+$-3\le a\le -1$
 
-021743
-20230425	2025届高一01班	0.927
+13311
+$9828$
 
-021744
-20230425	2025届高一01班	0.976
+13312
+C
 
-021745
-20230425	2025届高一01班	0.854	0.780
+13313
+B
 
-021746
-20230425	2025届高一01班	0.805
+13314
+C
 
-021747
-20230425	2025届高一01班	0.927
+13315
+(1) 证明略; (2) $\dfrac{\sqrt{10}}5$
 
-021748
-20230425	2025届高一01班	0.732
+13316
+(1) $a_n=n-1$; (2) 证明略
 
-021739
-20230425	2025届高一04班	0.949
+13317
+$\sqrt{5}$
 
-021740
-20230425	2025届高一04班	0.949
+13318
+$\overrightarrow{AD}=\dfrac 23 \overrightarrow{a}+\dfrac 13 \overrightarrow{b}$
 
-021741
-20230425	2025届高一04班	1.000	1.000	1.000	1.000
+13319
+$\dfrac{16}{35}$
 
-021742
-20230425	2025届高一04班	0.962
+13320
+$[0,8)$
 
-021743
-20230425	2025届高一04班	0.910
+13321
+$\dfrac{25}{9}$
 
-021744
-20230425	2025届高一04班	0.923
+13322
+$[\dfrac 34,1]$
 
-021745
-20230425	2025届高一04班	1.000	0.885
+13323
+$3$
 
-021746
-20230425	2025届高一04班	0.744
+13324
+$0$
 
-021747
-20230425	2025届高一04班	0.897
+13325
+$\dfrac{\sqrt{3}}2$
 
-021748
-20230425	2025届高一04班	0.692
+13326
+$\dfrac 34$
 
-021739
-20230425	2025届高一05班	1.000
+13327
+C
 
-021740
-20230425	2025届高一05班	1.000
+13328
+B
 
-021741
-20230425	2025届高一05班	1.000	1.000	1.000	1.000
+13329
+B
 
-021742
-20230425	2025届高一05班	0.974
+13330
+(1) 证明略; (2) $B_1D=\dfrac 12$
 
-021743
-20230425	2025届高一05班	0.859
+13331
+(1) $\dfrac{x^2}{4}+\dfrac{y^2}{3}=1$, $y\ne 0$; (2) $[12,8\sqrt{3})$;
 
-021744
-20230425	2025届高一05班	1.000
+13332
+$\sqrt{3}$
 
-021745
-20230425	2025届高一05班	0.974	0.885
+13333
+$8$
 
-021746
-20230425	2025届高一05班	0.679
+13334
+$-\dfrac 12$
 
-021747
-20230425	2025届高一05班	0.846
+13335
+$0.14$
 
-021748
-20230425	2025届高一05班	0.667
+13336
+$1$
 
-021739
-20230425	2025届高一06班	1.000
+13337
+$-2$
 
-021740
-20230425	2025届高一06班	0.927
+13338
+$99.9\%$
 
-021741
-20230425	2025届高一06班	0.976	0.976	1.000	0.902
+13339
+$\dfrac 1{15}$
 
-021742
-20230425	2025届高一06班	0.866
+13340
+$4$
 
-021743
-20230425	2025届高一06班	0.951
+13341
+$2$
 
-021744
-20230425	2025届高一06班	1.000
+13342
+A
 
-021745
-20230425	2025届高一06班	0.939	0.793
+13343
+B
 
-021746
-20230425	2025届高一06班	0.646
+13344
+B
 
-021747
-20230425	2025届高一06班	1.000
+13345
+(1) $\dfrac\pi 3$; (2) $\arcsin \dfrac{\sqrt{3}}3$
 
-021748
-20230425	2025届高一06班	0.732
+13346
+(1) $x=15$; (2) 比值为$\dfrac 12$
 
-021739
-20230425	2025届高一08班	1.000
+13347
+$-\dfrac 1{25}$
 
-021740
-20230425	2025届高一08班	0.971
+13348
+$-\dfrac{\sqrt{2}}2$
 
-021741
-20230425	2025届高一08班	1.000	1.000	1.000	1.000
+13349
+$6$
 
-021742
-20230425	2025届高一08班	0.986
+13350
+$(-1,-2)$
 
-021743
-20230425	2025届高一08班	0.986
+13351
+$4$
 
-021744
-20230425	2025届高一08班	0.886
+13352
+$0$
 
-021745
-20230425	2025届高一08班	1.000	0.857
+13353
+$12$
 
-021746
-20230425	2025届高一08班	0.700
+13354
+$1$
 
-021747
-20230425	2025届高一08班	0.971
+13355
+$\dfrac{\sqrt{3}}3$
 
-021748
-20230425	2025届高一08班	0.800
+13356
+$(0,\dfrac 14)$
 
-021739
-20230425	2025届高一09班	0.950
+13357
+B
 
-021740
-20230425	2025届高一09班	0.975
+13358
+A
 
-021741
-20230425	2025届高一09班	0.975	0.975	0.950	1.000
+13359
+D
 
-021742
-20230425	2025届高一09班	0.988
+13360
+(1) $P(0,0)$或$P(-\dfrac 85,\dfrac 45)$; (2) 过定点$(-\dfrac 45,\dfrac 25)$
 
-021743
-20230425	2025届高一09班	0.887
+13361
+(1) $p=\dfrac 23$, $q=\dfrac 14$; (2) $\dfrac 16$
 
-021744
-20230425	2025届高一09班	0.963
+13362
+$\{5,7,9\}$
 
-021745
-20230425	2025届高一09班	0.975	0.863
+13363
+$a+b>2$
 
-021746
-20230425	2025届高一09班	0.762
+13364
+$(0,+\infty)$
 
-021747
-20230425	2025届高一09班	0.975
+13365
+$\dfrac 23$
+
+13366
+$25$
+
+13367
+$(-\infty,-8]\cup [2,+\infty)$
+
+13368
+$\dfrac 52$
+
+13369
+$\dfrac 23$
+
+13370
+\textcircled{2}\textcircled{3}
+
+13371
+$9$
+
+13372
+B
+
+13373
+D
+
+13374
+D
+
+13375
+(1) $x=1$; (2) $[\dfrac 12,+\infty)$
+
+13376
+(1) $\dfrac{x^2}{4}+\dfrac{y^2}{2}=1$; (2) $y=\pm \dfrac{\sqrt{2}}2+1$
+
+
+13377
+$1$
+
+13378
+$\dfrac{5\pi}6$
+
+13379
+$\pi$
+
+13380
+$\dfrac{\sqrt{5}-1}2$
+
+13381
+$1:2\sqrt{2}$
+
+13382
+$\dfrac{x^2}{18}-\dfrac{y^2}{9}=1$
+
+13383
+$0.88$
+
+13384
+$0.95$
+
+13385
+$7$
+
+13386
+$(-\infty,8)$
+
+13387
+D
+
+13388
+A
+
+13389
+C
+
+13390
+(1) $y=\begin{cases}\dfrac{24x-2x^2}{15-x}, & x\in \{1,2,\cdots,9\},\\ \dfrac 53 x-\dfrac{x^3}{180},& x\in \{10,11,\cdots,20\};\end{cases}$ (2) 日进货量为$10$吨时, 日利润最大, 最大日利润是$\dfrac{100}{9}$千元
+
+13391
+(1) $y=2\sin(2x+\dfrac\pi 3)-1$; (2) $[-1,1]$
+
+13392
+$\{-1,2\}$
+
+13393
+$8$
+
+13394
+$7$
+
+13395
+$0.3$
+
+13396
+$0.2$
+
+13397
+$1$
+
+13398
+$6$
+
+13399
+$\mathrm{e}-1$
+
+13400
+$\dfrac{7}{25}$
+
+13401
+\textcircled{1}\textcircled{2}\textcircled{3}\textcircled{5}
+
+13402
+C
+
+13403
+A
+
+13404
+D
+
+13405
+(1) $\dfrac{x^2}{4}+\dfrac{y^2}{2}=1$; (2) $[0,2]$
+
+13406
+(I) (1) 证明略; (2) $S_n=4-\dfrac{n+2}{2^{n-1}}$; (II) 证明略
+
+13407
+$(0,1)\cup (1,2]$
+
+13408
+$-\sqrt{13}$
+
+13409
+$\sqrt{2}$
+
+13410
+$0.0044$
+
+13411
+$20$
+
+13412
+$2$
+
+13413
+$2\sqrt{2}$
+
+13414
+$x=-1$
+
+13415
+$\dfrac\pi 2$
+
+13416
+$-1$
+
+13417
+D
+
+13418
+D
+
+13419
+C
+
+13420
+(1) 证明略; (2) $\dfrac{\sqrt{3}}3$
+
+13421
+(1) $BD=BA$; (2) 约$0.33\text{km}$
+
+13422
+$\dfrac 32$
+
+13423
+$(3,4)$
+
+13424
+$\sqrt{7}$
+
+13425
+$\dfrac{9}{4}$或$\dfrac{4}{9}$
+
+13426
+$\dfrac{24}{25}$
+
+13427
+$\dfrac 34$
+
+13428
+$100$
+
+13429
+$-\dfrac{11}{16}$
+
+13430
+$30$
+
+13431
+$[\dfrac 73,\dfrac{13}{3})$
+
+13432
+B
+
+13433
+B
+
+13434
+A
+
+13435
+(1) $\dfrac{2\sqrt{6}}3$; (2) $\dfrac{\sqrt{10}}2\text{千米}$
+
+13436
+(1) 证明略; (2) $\dfrac{4\sqrt{3}}7$
+
+
+13437
+$\{1,3,5\}$
+
+13438
+$1$
+
+13439
+$2m-1$
+
+13440
+$8$
+
+13441
+$45$
+
+13442
+$\sqrt{5}$
+
+13443
+$\pi-\arctan\dfrac 32$
+
+13444
+$\dfrac{11}{12}$
+
+13445
+$-3$
+
+13446
+$[-2,6]$
+
+13447
+C
+
+13448
+C
+
+13449
+D
+
+13450
+(1) $4\pi$; (2) $\arctan\dfrac{\sqrt{2}}2$
+
+13451
+(1) 第一个数列具有性质$P$, 第二个数列不具有性质$P$; (2) $(-\infty,-2]\cup [0,+\infty)$
+
+
+
+13452
+$\dfrac 34\pi$
+
+13453
+$\sqrt{7}$
+
+13454
+$4$
+
+13455
+$\dfrac{24}{25}$
+
+13456
+$y=\dfrac {1}{\mathrm{e}}x$
+
+13457
+$\dfrac{16}{35}$
+
+13458
+$[1,3]$
+
+13459
+$36$
+
+13460
+$30$
+
+13461
+$\dfrac{2\sqrt{3}}3$
+
+13462
+B
+
+13463
+B
+
+13464
+C
+
+13465
+(1) 证明略; (2) $\dfrac{\sqrt{5}}5$
+
+13466
+(1) $[\dfrac 14,1)$; (2) 当$\theta=\dfrac{\pi}{6}$时
+
+13467
+$-2$
+
+13468
+$2\sqrt{2}$
+
+13469
+$16$
+
+13470
+$\dfrac 14$
+
+13471
+$5$
+
+13472
+$\dfrac{3\pi}{4}$
+
+13473
+$\sqrt{10}$
+
+13474
+$\dfrac{21}{16}$
+
+13475
+\textcircled{1}\textcircled{2}\textcircled{3}\textcircled{4}
+
+13476
+$7$
+
+13477
+B
+
+13478
+A
+
+13479
+C
+
+13480
+(1) $\dfrac 34$; (2) $\dfrac{13}{36}$
+
+13481
+(1) $-1$; (2) $(0,+\infty)$
+
+13482
+$1$
+
+13483
+$60$
+
+13484
+$\dfrac{80}{243}$
+
+13485
+$\dfrac 13$
+
+13486
+$\arccos\dfrac{\sqrt{15}}{10}$
+
+13487
+$2-\dfrac 1n$
+
+13488
+$21$
+
+13489
+$y=\begin{cases}x^2+\dfrac 1x, & x>0, \\ 0, & x=0, \\ -x^2+\dfrac 1x, & x<0\end{cases}$
+
+13490
+$a=2$或$a\ge 2\sqrt{2}$其中的一个即可
+
+13491
+$4$
+
+13492
+A
+
+13493
+C
+
+13494
+B
+
+13495
+(1) $y=x-1$; (2) $(-\infty,\dfrac 32)$
+
+13496
+(1) 证明略; (2) $6\sqrt{2}$
+
+13497
+$6$
+
+13498
+$2$
+
+13499
+$1-k$
+
+13500
+$4$
+
+13501
+$15$
+
+13502
+$(\dfrac 12,1)$
+
+13503
+$0.568$
+
+13504
+$1$
+
+13505
+$\lambda\ge -3$
+
+13506
+$\dfrac{56}3$
+
+13507
+A
+
+13508
+C
+
+13509
+D
+
+13510
+(1) $(3,5)$; (2) $[2,\dfrac 52]$
+
+13511
+(1) 约$16173$升; (2) 从第$13$个月起
 
-021748
-20230425	2025届高一09班	0.725
 
diff --git a/工具/讲义生成.py b/工具/讲义生成.py
index 629b0ef4..f7c07928 100644
--- a/工具/讲义生成.py
+++ b/工具/讲义生成.py
@@ -10,22 +10,7 @@ paper_type = 3 # 随后设置一下后续的讲义标题
 """---设置题块编号---"""
 
 problems = [
-# "012295:012297,012301,012305"
-# "012316:012318,012322,012326"
-# "012516:012518,012522,012526"
-# "012537:012539,012543,012547"
-# "012558:012560,012564,012568"
-# "012579:012581,012585,012589"
-# "012600:012602,012606,012610"
-# "012621:012623,012627,012631"
-# "012642:012644,012648,012652"
-# "012663:012665,012669,012673"
-# "012684:012686,012690,012694"
-# "012705:012707,012711,012715"
-# "012726:012728,012732,012736"
-# "012768:012770,012774,012778"
-"014519:014521,014525,014529"
-
+"13527:13541"
 ]
 
 """---设置结束---"""
@@ -44,7 +29,7 @@ elif paper_type == 2:
 elif paper_type == 3:
     enumi_mode = 0 #设置模式(1为整卷统一编号, 0为每一部分从1开始编号)
     template_file = "模板文件/日常选题讲义模板.txt" #设置模板文件名
-    exec_list = [("标题文字待处理","中档题冲刺15")]  #设置讲义标题
+    exec_list = [("标题文字待处理","双基训练11")]  #设置讲义标题
     destination_file = "临时文件/"+exec_list[0][1] # 设置输出文件名
     
 
diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 5b48ef41..ece98c9b 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -348895,7 +348895,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -348917,7 +348917,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$a>2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -348939,7 +348939,7 @@
             "第九单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$89$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -348961,7 +348961,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$[-1,2]$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -348983,7 +348983,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$12$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349005,7 +349005,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{3\\sqrt{2}}{4}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349027,7 +349027,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$16$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349049,7 +349049,7 @@
             "第六单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\arctan \\dfrac{\\sqrt{6}}6$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349071,7 +349071,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 56$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349093,7 +349093,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{\\sqrt{5}}{3}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349150,7 +349150,7 @@
             "第九单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349172,7 +349172,7 @@
             "第七单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349194,7 +349194,7 @@
             "第二单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $a=4$; (2) 证明略",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349216,7 +349216,7 @@
             "第三单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $[k\\pi+\\dfrac\\pi 3,k\\pi+\\dfrac{5\\pi}6]$, $k\\in \\mathbf{Z}$; (2) $A=\\dfrac\\pi 3$, $b=2$, $S=2\\sqrt{3}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349238,7 +349238,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(-\\infty,0)\\cup (1,+\\infty)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349260,7 +349260,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 32$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349282,7 +349282,7 @@
             "第六单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$12\\pi$",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -349308,7 +349308,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-\\dfrac 43$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349330,7 +349330,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 3{16}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349352,7 +349352,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$y=2x-\\mathrm{e}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349374,7 +349374,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$5$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349396,7 +349396,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$4\\pi$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349418,7 +349418,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-3\\le a\\le -1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349440,7 +349440,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$9828$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349462,7 +349462,7 @@
             "第八单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349484,7 +349484,7 @@
             "第八单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349507,7 +349507,7 @@
             "第三单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349529,7 +349529,7 @@
             "第六单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) 证明略; (2) $\\dfrac{\\sqrt{10}}5$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349551,7 +349551,7 @@
             "第四单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $a_n=n-1$; (2) 证明略",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349573,7 +349573,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\sqrt{5}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349595,7 +349595,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\overrightarrow{AD}=\\dfrac 23 \\overrightarrow{a}+\\dfrac 13 \\overrightarrow{b}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349617,7 +349617,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{16}{35}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349639,7 +349639,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$[0,8)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349661,7 +349661,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{25}{9}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349683,7 +349683,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$[\\dfrac 34,1]$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349705,7 +349705,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349727,7 +349727,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349749,7 +349749,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{\\sqrt{3}}2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349771,7 +349771,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 34$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349793,7 +349793,7 @@
             "第三单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349815,7 +349815,7 @@
             "暂无对应"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349837,7 +349837,7 @@
             "第四单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349859,7 +349859,7 @@
             "第六单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) 证明略; (2) $B_1D=\\dfrac 12$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349881,7 +349881,7 @@
             "第七单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $\\dfrac{x^2}{4}+\\dfrac{y^2}{3}=1$, $y\\ne 0$; (2) $[12,8\\sqrt{3})$;",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349903,7 +349903,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\sqrt{3}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349927,7 +349927,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$8$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -349984,7 +349984,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0.14$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350006,7 +350006,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350028,7 +350028,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350050,7 +350050,7 @@
             "第九单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$99.9\\%$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350072,7 +350072,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 1{15}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350094,7 +350094,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$4$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350116,7 +350116,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350138,7 +350138,7 @@
             "第二单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "A",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350160,7 +350160,7 @@
             "第三单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350182,7 +350182,7 @@
             "第七单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350204,7 +350204,7 @@
             "第六单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $\\dfrac\\pi 3$; (2) $\\arcsin \\dfrac{\\sqrt{3}}3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350226,7 +350226,7 @@
             "第二单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $x=15$; (2) 比值为$\\dfrac 12$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350248,7 +350248,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-\\dfrac 1{25}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350270,7 +350270,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-\\dfrac{\\sqrt{2}}2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350292,7 +350292,7 @@
             "第九单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$6$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350314,7 +350314,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(-1,-2)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350336,7 +350336,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$4$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350358,7 +350358,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350380,7 +350380,7 @@
             "第六单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$12$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350402,7 +350402,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350424,7 +350424,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{\\sqrt{3}}3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350446,7 +350446,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(0,\\dfrac 14)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350468,7 +350468,7 @@
             "第四单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350490,7 +350490,7 @@
             "第三单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "A",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350512,7 +350512,7 @@
             "第七单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350534,7 +350534,7 @@
             "第七单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $P(0,0)$或$P(-\\dfrac 85,\\dfrac 45)$; (2) 过定点$(-\\dfrac 45,\\dfrac 25)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350556,7 +350556,7 @@
             "第八单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $p=\\dfrac 23$, $q=\\dfrac 14$; (2) $\\dfrac 16$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350578,7 +350578,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\{5,7,9\\}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350600,7 +350600,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$a+b>2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350622,7 +350622,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(0,+\\infty)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350644,7 +350644,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 23$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350666,7 +350666,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$25$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350688,7 +350688,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(-\\infty,-8]\\cup [2,+\\infty)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350710,7 +350710,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 52$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350732,7 +350732,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 23$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350754,7 +350754,7 @@
             "第六单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "\\textcircled{2}\\textcircled{3}",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350776,7 +350776,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$9$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350798,7 +350798,7 @@
             "第五单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350820,7 +350820,7 @@
             "第九单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350842,7 +350842,7 @@
             "第七单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350864,7 +350864,7 @@
             "第二单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $x=1$; (2) $[\\dfrac 12,+\\infty)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350886,7 +350886,7 @@
             "第七单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $\\dfrac{x^2}{4}+\\dfrac{y^2}{2}=1$; (2) $y=\\pm \\dfrac{\\sqrt{2}}2+1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350908,7 +350908,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1$",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -350934,7 +350934,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{5\\pi}6$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350956,7 +350956,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\pi$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -350978,7 +350978,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{\\sqrt{5}-1}2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351000,7 +351000,7 @@
             "第六单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1:2\\sqrt{2}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351022,7 +351022,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{x^2}{18}-\\dfrac{y^2}{9}=1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351044,7 +351044,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0.88$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351066,7 +351066,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0.95$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351088,7 +351088,7 @@
             "第九单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$7$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351110,7 +351110,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(-\\infty,8)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351132,7 +351132,7 @@
             "第六单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351154,7 +351154,7 @@
             "第二单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "A",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351176,7 +351176,7 @@
             "第六单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351198,7 +351198,7 @@
             "第二单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $y=\\begin{cases}\\dfrac{24x-2x^2}{15-x}, & x\\in \\{1,2,\\cdots,9\\},\\\\ \\dfrac 53 x-\\dfrac{x^3}{180},& x\\in \\{10,11,\\cdots,20\\};\\end{cases}$ (2) 日进货量为$10$吨时, 日利润最大, 最大日利润是$\\dfrac{100}{9}$千元",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351220,7 +351220,7 @@
             "第三单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $y=2\\sin(2x+\\dfrac\\pi 3)-1$; (2) $[-1,1]$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351242,7 +351242,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\{-1,2\\}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351264,7 +351264,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$8$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351286,7 +351286,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$7$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351308,7 +351308,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0.3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351330,7 +351330,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0.2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351352,7 +351352,7 @@
             "第九单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351374,7 +351374,7 @@
             "第六单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$6$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351396,7 +351396,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\mathrm{e}-1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351418,7 +351418,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{7}{25}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351440,7 +351440,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "\\textcircled{1}\\textcircled{2}\\textcircled{3}\\textcircled{5}",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351462,7 +351462,7 @@
             "第六单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351484,7 +351484,7 @@
             "第九单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "A",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351506,7 +351506,7 @@
             "第三单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351528,7 +351528,7 @@
             "第七单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $\\dfrac{x^2}{4}+\\dfrac{y^2}{2}=1$; (2) $[0,2]$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351550,7 +351550,7 @@
             "第四单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(I) (1) 证明略; (2) $S_n=4-\\dfrac{n+2}{2^{n-1}}$; (II) 证明略",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351572,7 +351572,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(0,1)\\cup (1,2]$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351594,7 +351594,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-\\sqrt{13}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351616,7 +351616,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\sqrt{2}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351638,7 +351638,7 @@
             "第九单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0.0044$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351660,7 +351660,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$20$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351682,7 +351682,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351704,7 +351704,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$2\\sqrt{2}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351726,7 +351726,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$x=-1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351748,7 +351748,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac\\pi 2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351771,7 +351771,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351793,7 +351793,7 @@
             "第九单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351815,7 +351815,7 @@
             "第二单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351837,7 +351837,7 @@
             "第一单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351859,7 +351859,7 @@
             "第六单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) 证明略; (2) $\\dfrac{\\sqrt{3}}3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351881,7 +351881,7 @@
             "第三单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $BD=BA$; (2) 约$0.33\\text{km}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351903,7 +351903,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 32$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351925,7 +351925,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(3,4)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351947,7 +351947,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\sqrt{7}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351969,7 +351969,7 @@
             "第九单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{9}{4}$或$\\dfrac{4}{9}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -351991,7 +351991,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{24}{25}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352013,7 +352013,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 34$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352035,7 +352035,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$100$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352057,7 +352057,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-\\dfrac{11}{16}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352079,7 +352079,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$30$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352101,7 +352101,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$[\\dfrac 73,\\dfrac{13}{3})$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352123,7 +352123,7 @@
             "第一单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352145,7 +352145,7 @@
             "第二单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352167,7 +352167,7 @@
             "第八单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "A",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352189,7 +352189,7 @@
             "第七单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $\\dfrac{2\\sqrt{6}}3$; (2) $\\dfrac{\\sqrt{10}}2\\text{千米}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352211,7 +352211,7 @@
             "第六单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) 证明略; (2) $\\dfrac{4\\sqrt{3}}7$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352233,7 +352233,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\{1,3,5\\}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352255,7 +352255,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352277,7 +352277,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$2m-1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352299,7 +352299,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$8$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352321,7 +352321,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$45$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352343,7 +352343,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\sqrt{5}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352365,7 +352365,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\pi-\\arctan\\dfrac 32$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352387,7 +352387,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{11}{12}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352409,7 +352409,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352431,7 +352431,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$[-2,6]$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352453,7 +352453,7 @@
             "第二单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352475,7 +352475,7 @@
             "第九单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352497,7 +352497,7 @@
             "第二单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352519,7 +352519,7 @@
             "第六单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $4\\pi$; (2) $\\arctan\\dfrac{\\sqrt{2}}2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352541,7 +352541,7 @@
             "第四单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) 第一个数列具有性质$P$, 第二个数列不具有性质$P$; (2) $(-\\infty,-2]\\cup [0,+\\infty)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352563,7 +352563,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 34\\pi$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352585,7 +352585,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\sqrt{7}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352607,7 +352607,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$4$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352629,7 +352629,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{24}{25}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352651,7 +352651,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$y=\\dfrac {1}{\\mathrm{e}}x$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352673,7 +352673,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{16}{35}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352695,7 +352695,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$[1,3]$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352717,7 +352717,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$36$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352739,7 +352739,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$30$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352761,7 +352761,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{2\\sqrt{3}}3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352783,7 +352783,7 @@
             "第九单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352805,7 +352805,7 @@
             "第五单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352827,7 +352827,7 @@
             "第六单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352849,7 +352849,7 @@
             "第六单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) 证明略; (2) $\\dfrac{\\sqrt{5}}5$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352871,7 +352871,7 @@
             "第三单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $[\\dfrac 14,1)$; (2) 当$\\theta=\\dfrac{\\pi}{6}$时",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352893,7 +352893,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$-2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352915,7 +352915,7 @@
             "第六单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$2\\sqrt{2}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352937,7 +352937,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$16$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352959,7 +352959,7 @@
             "第一单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 14$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -352981,7 +352981,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$5$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353003,7 +353003,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{3\\pi}{4}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353025,7 +353025,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\sqrt{10}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353047,7 +353047,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{21}{16}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353069,7 +353069,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "\\textcircled{1}\\textcircled{2}\\textcircled{3}\\textcircled{4}",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353092,7 +353092,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$7$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353114,7 +353114,7 @@
             "第二单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353136,7 +353136,7 @@
             "第三单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "A",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353158,7 +353158,7 @@
             "第二单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353182,7 +353182,7 @@
             "第八单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $\\dfrac 34$; (2) $\\dfrac{13}{36}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353204,7 +353204,7 @@
             "第二单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $-1$; (2) $(0,+\\infty)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353226,7 +353226,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353248,7 +353248,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$60$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353270,7 +353270,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{80}{243}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353292,7 +353292,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac 13$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353314,7 +353314,7 @@
             "第六单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\arccos\\dfrac{\\sqrt{15}}{10}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353336,7 +353336,7 @@
             "第四单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$2-\\dfrac 1n$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353358,7 +353358,7 @@
             "第九单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$21$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353380,7 +353380,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$y=\\begin{cases}x^2+\\dfrac 1x, & x>0, \\\\ 0, & x=0, \\\\ -x^2+\\dfrac 1x, & x<0\\end{cases}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353402,7 +353402,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$a=2$或$a\\ge 2\\sqrt{2}$其中的一个即可",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353424,7 +353424,7 @@
             "第五单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$4$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353446,7 +353446,7 @@
             "第一单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "A",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353468,7 +353468,7 @@
             "第六单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353490,7 +353490,7 @@
             "第四单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353512,7 +353512,7 @@
             "第二单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $y=x-1$; (2) $(-\\infty,\\dfrac 32)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353534,7 +353534,7 @@
             "第七单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) 证明略; (2) $6\\sqrt{2}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353556,7 +353556,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$6$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353578,7 +353578,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$2$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353600,7 +353600,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1-k$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353622,7 +353622,7 @@
             "第七单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$4$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353644,7 +353644,7 @@
             "第九单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$15$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353666,7 +353666,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(\\dfrac 12,1)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353688,7 +353688,7 @@
             "第八单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0.568$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353710,7 +353710,7 @@
             "第三单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353732,7 +353732,7 @@
             "第二单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\lambda\\ge -3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353754,7 +353754,7 @@
             "第六单元"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{56}3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353776,7 +353776,7 @@
             "第三单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "A",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353833,7 +353833,7 @@
             "第八单元"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353855,7 +353855,7 @@
             "第一单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $(3,5)$; (2) $[2,\\dfrac 52]$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -353877,7 +353877,7 @@
             "第四单元"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) 约$16173$升; (2) 从第$13$个月起",
         "solution": "",
         "duration": -1,
         "usages": [],