diff --git a/工具/寻找tex文件中未赋答案的题目.ipynb b/工具/寻找tex文件中未赋答案的题目.ipynb
index b54cf393..9de96737 100644
--- a/工具/寻找tex文件中未赋答案的题目.ipynb
+++ b/工具/寻找tex文件中未赋答案的题目.ipynb
@@ -2,90 +2,66 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 12,
+   "execution_count": 4,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "36_椭圆与双曲线的概念及性质.tex\n",
-      "008894\n",
+      "38_计数原理与排列组合.tex\n",
+      "007380\n",
       "\n",
       "\n",
-      "002314\n",
+      "003666\n",
       "\n",
       "\n",
-      "000271\n",
+      "007455\n",
       "\n",
       "\n",
-      "009823\n",
+      "007502\n",
       "\n",
       "\n",
-      "030483\n",
+      "007521\n",
       "\n",
       "\n",
-      "002369\n",
+      "010861\n",
       "\n",
       "\n",
-      "008910\n",
+      "009333\n",
       "\n",
       "\n",
-      "003421\n",
+      "007673\n",
       "\n",
       "\n",
-      "008912\n",
+      "002537\n",
       "\n",
       "\n",
-      "030484\n",
+      "002586\n",
       "\n",
       "\n",
-      "002391\n",
+      "007432\n",
       "\n",
       "\n",
-      "002435\n",
+      "002563\n",
       "\n",
       "\n",
-      "003400\n",
+      "009262\n",
       "\n",
       "\n",
-      "002329\n",
+      "007476\n",
       "\n",
       "\n",
-      "008873\n",
+      "007494\n",
       "\n",
       "\n",
-      "002342\n",
+      "003640\n",
       "\n",
       "\n",
-      "010673\n",
+      "009351\n",
       "\n",
       "\n",
-      "002325\n",
-      "\n",
-      "\n",
-      "004717\n",
-      "\n",
-      "\n",
-      "002348\n",
-      "\n",
-      "\n",
-      "009985\n",
-      "\n",
-      "\n",
-      "009830\n",
-      "\n",
-      "\n",
-      "009832\n",
-      "\n",
-      "\n",
-      "002372\n",
-      "\n",
-      "\n",
-      "003431\n",
-      "\n",
-      "\n",
-      "008952\n",
+      "003574\n",
       "\n",
       "\n"
      ]
@@ -95,9 +71,9 @@
     "import os,json,re\n",
     "\n",
     "#这里需要修改, 设定路径与选择文件\n",
-    "fileind = 36\n",
+    "fileind = 38\n",
     "# path = r\"C:\\Users\\weiye\\Documents\\wwy sync\\23届\\上学期测验卷\"\n",
-    "path = r\"C:\\Users\\wang weiye\\Documents\\wwy sync\\23届\\第一轮复习讲义\"\n",
+    "path = r\"C:\\Users\\weiye\\Documents\\wwy sync\\23届\\第一轮复习讲义\"\n",
     "\n",
     "fileind = fileind - 1\n",
     "with open(\"../题库0.3/Problems.json\",\"r\",encoding = \"utf8\") as f:\n",
@@ -125,7 +101,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.9.7 ('base')",
+   "display_name": "Python 3.8.15 ('mathdept')",
    "language": "python",
    "name": "python3"
   },
@@ -139,12 +115,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.7"
+   "version": "3.8.15"
   },
   "orig_nbformat": 4,
   "vscode": {
    "interpreter": {
-    "hash": "e4cce46d6be9934fbd27f9ca0432556941ea5bdf741d4f4d64c6cd7f8dfa8fba"
+    "hash": "42dd566da87765ddbe9b5c5b483063747fec4aacc5469ad554706e4b742e67b2"
    }
   }
  },
diff --git a/工具/批量添加题库字段数据.ipynb b/工具/批量添加题库字段数据.ipynb
index 1b9f6e12..d6a65a23 100644
--- a/工具/批量添加题库字段数据.ipynb
+++ b/工具/批量添加题库字段数据.ipynb
@@ -2,25 +2,45 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 9,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "题号: 008894 , 字段: ans 中已修改数据: $[1,5)\\cup (5,+\\infty)$\n",
-      "题号: 002314 , 字段: ans 中已修改数据: $(3,4)\\cup (4,5)$\n",
-      "题号: 000271 , 字段: ans 中已修改数据: $\\dfrac{\\sqrt{5}-1}2$\n",
-      "题号: 009823 , 字段: ans 中已修改数据: 最大值为$10$, 最小值为$2$\n",
-      "题号: 030483 , 字段: ans 中已修改数据: $\\pm 1$\n",
-      "题号: 002369 , 字段: ans 中已修改数据: $\\dfrac{x^2}{9/2}-\\dfrac{y^2}{9/2}=1$\n",
-      "题号: 008910 , 字段: ans 中已修改数据: B\n",
-      "题号: 003421 , 字段: ans 中已修改数据: $\\arccos \\dfrac 13$\n",
-      "题号: 008912 , 字段: ans 中已修改数据: $x^2-\\dfrac{y^2}9=1$或$\\dfrac{y^2}{81}-\\dfrac{x^2}9=1$\n",
-      "题号: 030484 , 字段: ans 中已修改数据: $90^{\\circ}$\n",
-      "题号: 002391 , 字段: ans 中已修改数据: (1) $y=x$($x>\\sqrt{2}$或$y<-\\sqrt{2}$); (2) $2x^2-y^2-4x+y=0$, 能取到每一个点\n",
-      "题号: 002435 , 字段: ans 中已修改数据: (1) $y=\\sqrt{3}x+1$; (2) $y=\\dfrac{1+\\sqrt{7}}2x+\\dfrac{1-\\sqrt{7}}2$或$y=\\dfrac{1-\\sqrt{7}}2x+\\dfrac{1+\\sqrt{7}}2$\n"
+      "题号: 003400 , 字段: ans 中已修改数据: $(4,5)$\n",
+      "题号: 002329 , 字段: ans 中已修改数据: $\\dfrac{y^2}{25}+\\dfrac{x^2}{16}=1$或$\\dfrac{x^2}{25}+\\dfrac{y^2}{9}=1$\n",
+      "题号: 008873 , 字段: ans 中已修改数据: (1) $\\dfrac{x^2}{100}+\\dfrac{y^2}{64}=1$; (2) $\\dfrac{x^2}{6}+\\dfrac{y^2}{4}=1$; (3) $\\dfrac{x^2}8+\\dfrac{y^2}4=1$或$\\dfrac{y^2}8+\\dfrac{x^2}4=1$\n",
+      "题号: 002342 , 字段: ans 中已修改数据: $\\sqrt{3}-1$\n",
+      "题号: 010673 , 字段: ans 中已修改数据: $\\dfrac{x^2}{5.9^2}+\\dfrac{y^2}{5.8^2}=1$(以$1\\times 10^8\\text{km}$为单位)\n",
+      "题号: 002325 , 字段: ans 中已修改数据: $2x+4y-3=0$\n",
+      "题号: 004717 , 字段: ans 中已修改数据: B\n",
+      "题号: 002348 , 字段: ans 中已修改数据: $(-\\sqrt{5},0)$或$(\\sqrt{5},0)$\n",
+      "题号: 009985 , 字段: ans 中已修改数据: $6$\n",
+      "题号: 009830 , 字段: ans 中已修改数据: A\n",
+      "题号: 009832 , 字段: ans 中已修改数据: (1) $\\dfrac{x^2}{25}-\\dfrac{y^2}{3}=1$; (2) $\\dfrac{x^2}{16}-\\dfrac{y^2}9=1$\n",
+      "题号: 002372 , 字段: ans 中已修改数据: $\\dfrac{x^2}{64/9}-\\dfrac{y^2}4=1$\n",
+      "题号: 003431 , 字段: ans 中已修改数据: $3$\n",
+      "题号: 008952 , 字段: ans 中已修改数据: 斜率为$2$, 但是判别式小于零, 故直线不存在.\n",
+      "题号: 007380 , 字段: ans 中已修改数据: C\n",
+      "题号: 003666 , 字段: ans 中已修改数据: D\n",
+      "题号: 007455 , 字段: ans 中已修改数据: $120$\n",
+      "题号: 007502 , 字段: ans 中已修改数据: $20$\n",
+      "题号: 007521 , 字段: ans 中已修改数据: $2520$\n",
+      "题号: 010861 , 字段: ans 中已修改数据: $24$\n",
+      "题号: 009333 , 字段: ans 中已修改数据: $375$\n",
+      "题号: 007673 , 字段: ans 中已修改数据: $78120$\n",
+      "题号: 002537 , 字段: ans 中已修改数据: $3720$\n",
+      "题号: 002586 , 字段: ans 中已修改数据: $45213$, $88$\n",
+      "题号: 007432 , 字段: ans 中已修改数据: (1) $72$; (2) $72$; (3) $72$\n",
+      "题号: 002563 , 字段: ans 中已修改数据: $1-\\dfrac{1}{(n+1)!}$\n",
+      "题号: 009262 , 字段: ans 中已修改数据: (1) $6$; (2) $5$; (3) $4$\n",
+      "题号: 007476 , 字段: ans 中已修改数据: $3$或$6$\n",
+      "题号: 007494 , 字段: ans 中已修改数据: 证明略\n",
+      "题号: 003640 , 字段: ans 中已修改数据: $\\dfrac{27}{100}$\n",
+      "题号: 009351 , 字段: ans 中已修改数据: $\\dfrac{11}{21}$\n",
+      "题号: 003574 , 字段: ans 中已修改数据: $0.985$\n"
      ]
     }
    ],
@@ -118,7 +138,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.9.7 ('base')",
+   "display_name": "Python 3.8.15 ('mathdept')",
    "language": "python",
    "name": "python3"
   },
@@ -132,12 +152,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.7"
+   "version": "3.8.15"
   },
   "orig_nbformat": 4,
   "vscode": {
    "interpreter": {
-    "hash": "e4cce46d6be9934fbd27f9ca0432556941ea5bdf741d4f4d64c6cd7f8dfa8fba"
+    "hash": "42dd566da87765ddbe9b5c5b483063747fec4aacc5469ad554706e4b742e67b2"
    }
   }
  },
diff --git a/工具/文本文件/metadata.txt b/工具/文本文件/metadata.txt
index e05557bc..ea7b8ff4 100644
--- a/工具/文本文件/metadata.txt
+++ b/工具/文本文件/metadata.txt
@@ -1,3 +1,97 @@
 ans
 
-test
\ No newline at end of file
+003400
+$(4,5)$
+
+002329
+$\dfrac{y^2}{25}+\dfrac{x^2}{16}=1$或$\dfrac{x^2}{25}+\dfrac{y^2}{9}=1$
+
+008873
+(1) $\dfrac{x^2}{100}+\dfrac{y^2}{64}=1$; (2) $\dfrac{x^2}{6}+\dfrac{y^2}{4}=1$; (3) $\dfrac{x^2}8+\dfrac{y^2}4=1$或$\dfrac{y^2}8+\dfrac{x^2}4=1$
+
+002342
+$\sqrt{3}-1$
+
+010673
+$\dfrac{x^2}{5.9^2}+\dfrac{y^2}{5.8^2}=1$(以$1\times 10^8\text{km}$为单位)
+
+002325
+$2x+4y-3=0$
+
+004717
+B
+
+002348
+$(-\sqrt{5},0)$或$(\sqrt{5},0)$
+
+009985
+$6$
+
+009830
+A
+
+009832
+(1) $\dfrac{x^2}{25}-\dfrac{y^2}{3}=1$; (2) $\dfrac{x^2}{16}-\dfrac{y^2}9=1$
+
+002372
+$\dfrac{x^2}{64/9}-\dfrac{y^2}4=1$
+
+003431
+$3$
+
+008952
+斜率为$2$, 但是判别式小于零, 故直线不存在.
+
+007380
+C
+
+003666
+D
+
+007455
+$120$
+
+007502
+$20$
+
+007521
+$2520$
+
+010861
+$24$
+
+009333
+$375$
+
+007673
+$78120$
+
+002537
+$3720$
+
+002586
+$45213$, $88$
+
+007432
+(1) $72$; (2) $72$; (3) $72$
+
+002563
+$1-\dfrac{1}{(n+1)!}$
+
+009262
+(1) $6$; (2) $5$; (3) $4$
+
+007476
+$3$或$6$
+
+007494
+证明略
+
+003640
+$\dfrac{27}{100}$
+
+009351
+$\dfrac{11}{21}$
+
+003574
+$0.985$
diff --git a/工具/题号选题pdf生成.ipynb b/工具/题号选题pdf生成.ipynb
index c386d27a..50a53343 100644
--- a/工具/题号选题pdf生成.ipynb
+++ b/工具/题号选题pdf生成.ipynb
@@ -9,9 +9,9 @@
      "name": "stdout",
      "output_type": "stream",
      "text": [
-      "开始编译教师版本pdf文件:  临时文件/题库_教师用_20221205.tex\n",
+      "开始编译教师版本pdf文件:  临时文件/题库_教师用_20221208.tex\n",
       "0\n",
-      "开始编译学生版本pdf文件:  临时文件/题库_学生用_20221205.tex\n",
+      "开始编译学生版本pdf文件:  临时文件/题库_学生用_20221208.tex\n",
       "0\n"
      ]
     }
@@ -174,7 +174,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.8.8 ('base')",
+   "display_name": "Python 3.8.15 ('mathdept')",
    "language": "python",
    "name": "python3"
   },
@@ -188,12 +188,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.8.8"
+   "version": "3.8.15"
   },
   "orig_nbformat": 4,
   "vscode": {
    "interpreter": {
-    "hash": "d311ffef239beb3b8f3764271728f3972d7b090c974f8e972fcdeedf230299ac"
+    "hash": "42dd566da87765ddbe9b5c5b483063747fec4aacc5469ad554706e4b742e67b2"
    }
   }
  },
diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 8fbfe7b6..180b344d 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -64045,7 +64045,7 @@
             "椭圆"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "$2x+4y-3=0$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -64142,7 +64142,7 @@
             "椭圆"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{y^2}{25}+\\dfrac{x^2}{16}=1$或$\\dfrac{x^2}{25}+\\dfrac{y^2}{9}=1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -64454,7 +64454,7 @@
             "椭圆"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\sqrt{3}-1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -64599,7 +64599,7 @@
             "双曲线"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(-\\sqrt{5},0)$或$(\\sqrt{5},0)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -65190,7 +65190,7 @@
             "双曲线"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{x^2}{64/9}-\\dfrac{y^2}4=1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -69465,7 +69465,7 @@
             "排列"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$3720$",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -70141,7 +70141,7 @@
             "排列"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$1-\\dfrac{1}{(n+1)!}$",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -70773,7 +70773,7 @@
             "加法原理与乘法原理"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$45213$, $88$",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -91695,7 +91695,7 @@
             "椭圆"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$(4,5)$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -92455,7 +92455,7 @@
             "双曲线"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$3$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -96082,7 +96082,7 @@
             "概率"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$0.985$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -97734,7 +97734,7 @@
             "概率"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$\\dfrac{27}{100}$",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -98400,7 +98400,7 @@
             "加法原理与乘法原理"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "D",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -125706,7 +125706,7 @@
             "椭圆"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "B",
         "solution": "",
         "duration": -1,
         "usages": [
@@ -187395,7 +187395,7 @@
             "加法原理与乘法原理"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "C",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -188553,7 +188553,7 @@
             "排列"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $72$; (2) $72$; (3) $72$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -189075,7 +189075,7 @@
             "加法原理与乘法原理"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$120$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -189555,7 +189555,7 @@
             "组合"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$3$或$6$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -189961,7 +189961,7 @@
             "组合"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "证明略",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -190144,7 +190144,7 @@
             "加法原理与乘法原理"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "$20$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -190572,7 +190572,7 @@
             "组合"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "$2520$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -194251,7 +194251,7 @@
             "加法原理与乘法原理"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "$78120$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -222789,7 +222789,7 @@
             "椭圆"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $\\dfrac{x^2}{100}+\\dfrac{y^2}{64}=1$; (2) $\\dfrac{x^2}{6}+\\dfrac{y^2}{4}=1$; (3) $\\dfrac{x^2}8+\\dfrac{y^2}4=1$或$\\dfrac{y^2}8+\\dfrac{x^2}4=1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -224815,7 +224815,7 @@
             "双曲线"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "斜率为$2$, 但是判别式小于零, 故直线不存在.",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -231774,7 +231774,7 @@
             "排列"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $6$; (2) $5$; (3) $4$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -233401,7 +233401,7 @@
             "组合"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "$375$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -233821,7 +233821,7 @@
             "概率"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "$\\dfrac{11}{21}$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -244981,7 +244981,7 @@
             "双曲线"
         ],
         "genre": "选择题",
-        "ans": "",
+        "ans": "A",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -245032,7 +245032,7 @@
             "双曲线"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "(1) $\\dfrac{x^2}{25}-\\dfrac{y^2}{3}=1$; (2) $\\dfrac{x^2}{16}-\\dfrac{y^2}9=1$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -248648,7 +248648,7 @@
             "双曲线"
         ],
         "genre": "填空题",
-        "ans": "",
+        "ans": "$6$",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -264913,7 +264913,7 @@
             "椭圆"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "$\\dfrac{x^2}{5.9^2}+\\dfrac{y^2}{5.8^2}=1$(以$1\\times 10^8\\text{km}$为单位)",
         "solution": "",
         "duration": -1,
         "usages": [],
@@ -269505,7 +269505,7 @@
             "组合"
         ],
         "genre": "解答题",
-        "ans": "",
+        "ans": "$24$",
         "solution": "",
         "duration": -1,
         "usages": [],