diff --git a/工具/关键字筛选题号.ipynb b/工具/关键字筛选题号.ipynb
index a426cf28..6934bb81 100644
--- a/工具/关键字筛选题号.ipynb
+++ b/工具/关键字筛选题号.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 2,
+   "execution_count": 5,
    "metadata": {},
    "outputs": [
     {
@@ -11,7 +11,7 @@
        "0"
       ]
      },
-     "execution_count": 2,
+     "execution_count": 5,
      "metadata": {},
      "output_type": "execute_result"
     }
@@ -21,7 +21,7 @@
     "\n",
     "\"\"\"---设置关键字, 同一field下不同选项为or关系, 同一字典中不同字段间为and关系, 不同字典间为or关系, _not表示列表中的关键字都不含, 同一字典中的数字用来供应同一字段不同的条件之间的and---\"\"\"\n",
     "keywords_dict_table = [\n",
-    "    {\"usages\":[r\"\\.8[5-9]\",r\"\\.9[0-4]\"],\"usages\":[\"2023\"],\"usages_not\":[r\"\\.[0-7]\"],\"tags\":['一','二']}\n",
+    "    {\"usages\":[r\"0\\.8\"],\"genre\":[\"填空题\"],\"usages_not\":[r\"0\\.9\"]}\n",
     "]\n",
     "\"\"\"---关键字设置完毕---\"\"\"\n",
     "# 示例： keywords_dict_table = [\n",
@@ -85,7 +85,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.9.7 ('base')",
+   "display_name": "Python 3.8.8 ('base')",
    "language": "python",
    "name": "python3"
   },
@@ -99,12 +99,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.7"
+   "version": "3.8.8"
   },
   "orig_nbformat": 4,
   "vscode": {
    "interpreter": {
-    "hash": "e4cce46d6be9934fbd27f9ca0432556941ea5bdf741d4f4d64c6cd7f8dfa8fba"
+    "hash": "d311ffef239beb3b8f3764271728f3972d7b090c974f8e972fcdeedf230299ac"
    }
   }
  },
diff --git a/工具/文本文件/题号筛选.txt b/工具/文本文件/题号筛选.txt
index 6db3e0ad..2e8d011e 100644
--- a/工具/文本文件/题号筛选.txt
+++ b/工具/文本文件/题号筛选.txt
@@ -1 +1 @@
-9733,9736,10539,10540,10534,10535,10537,10538,9735,10536,218,219,222,223,332,401,654,2662,2664,3585,3660,3787,4647,9349,10544,227,229,512,672,9741,9745,10545,10550,9744
\ No newline at end of file
+000069,000141,000332,000333,000337,000350,000354,000355,000360,000363,000371,000391,000403,000405,000413,000415,000440,000441,000442,000444,000452,000454,000473,000485,000490,000491,000514,000515,000524,000525,000526,000530,000540,000542,000544,000545,000551,000558,000574,000582,000584,000595,000597,000604,000615,000621,000623,000630,000635,000654,000655,000664,000665,000674,000689,000704,000705,000712,000719,000722,000733,000744,000745,000749,000751,000756,000774,000783,000795,000804,000805,000806,000808,000813,000814,000825,000837,000852,000863,000876,000884,000885,000887,000889,000891,000905,000911,000930,000947,000955,000963,000970,000971,000973,000974,000989,000998,001066,001193,001251,001252,001253,001255,001256,001257,001264,001273,001303,001304,001329,001340,001342,001344,001374,001379,001380,001381,001403,001404,001413,001414,001427,001443,001444,001461,001462,001469,001479,001486,001488,001509,001515,001516,001519,001525,001531,001534,001543,001545,001553,001561,001563,001565,001566,001577,001582,001592,001617,001631,001639,001666,001667,001671,001689,001691,001696,001697,001709,001711,001712,001718,001724,001725,001726,001763,001765,001772,001775,001790,001811,001839,001840,001841,001853,001866,001889,001892,001894,001895,001903,001919,001944,001947,001952,001953,001964,001965,001968,001988,001989,001999,002003,002017,002020,002034,002036,002038,002042,002051,002052,002054,002062,002063,002064,002066,002067,002071,002080,002082,002087,002096,002101,002102,002110,002111,002137,002141,002145,002148,002154,002180,002186,002188,002189,002197,002199,002200,002201,002202,002205,002215,002227,002228,002240,002242,002244,002258,002260,002266,002274,002276,002279,002281,002293,002295,002439,002441,002442,002445,002457,002459,002461,002466,002469,002494,002499,002508,002509,002521,002526,002527,002532,002533,002537,002538,002540,002571,002577,002578,002580,002584,002589,002591,002594,002596,002597,002600,002603,002604,002605,002610,002615,002618,002620,002624,002646,002648,002657,002659,002674,002693,002712,002746,002750,002768,002794,002871,002878,002884,002893,002911,002914,002994,003113,003135,003181,003356,003505,003599,003620,003621,003640,003641,003663,003777,003959,003985,004064,004065,004066,004087,004148,004152,004173,004196,004208,004228,004258,004273,004277,004278,004298,004300,004333,004339,004340,004343,004382,004412,004416,004417,004435,004436,004448,004474,004499,004514,004534,004539,004540,004590,004600,004612,004614,004624,004625,004626,004627,004646,004648,004666,004668,004672,004731,004732,004751,004754,004949,005463,008392,010953,030014,030030,030032,030039,030040,030048,030050,030053,030055,030062,030068,030077,030101,030106,030107
\ No newline at end of file
diff --git a/工具/讲义生成.ipynb b/工具/讲义生成.ipynb
index c6cf6478..6b5ad773 100644
--- a/工具/讲义生成.ipynb
+++ b/工具/讲义生成.ipynb
@@ -2,7 +2,7 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 1,
    "metadata": {},
    "outputs": [
     {
@@ -13,9 +13,9 @@
       "题块 1 处理完毕.\n",
       "正在处理题块 2 .\n",
       "题块 2 处理完毕.\n",
-      "开始编译教师版本pdf文件:  临时文件/27_统计初步中的术语_粗选_教师_20221021.tex\n",
+      "开始编译教师版本pdf文件:  临时文件/27_统计初步中的术语_粗选2_教师_20221021.tex\n",
       "0\n",
-      "开始编译学生版本pdf文件:  临时文件/27_统计初步中的术语_粗选_学生_20221021.tex\n",
+      "开始编译学生版本pdf文件:  临时文件/27_统计初步中的术语_粗选2_学生_20221021.tex\n",
       "0\n"
      ]
     }
@@ -49,14 +49,14 @@
     "\"\"\"---其他预处理替换命令结束---\"\"\"\n",
     "\n",
     "\"\"\"---设置目标文件名---\"\"\"\n",
-    "destination_file = \"临时文件/27_统计初步中的术语_粗选\"\n",
+    "destination_file = \"临时文件/27_统计初步中的术语_粗选2\"\n",
     "\"\"\"---设置目标文件名结束---\"\"\"\n",
     "\n",
     "\n",
     "\"\"\"---设置题号数据---\"\"\"\n",
     "problems = [\n",
-    "\"30262,30200,30196,235,30207,236,30212,233,30214,30222,30263,30246,30247,30209,30274,30261,30215,30270\",\n",
-    "\"30202,30239,30208,30211,30264,30253,30268,30227,30243\"\n",
+    "\"30262,30200,30196,235,30207,236,30212,233,30214,30222,30263,30246,30247,30209,30274,30275,30215,30270\",\n",
+    "\"30202,30239,30208,30211,30264,30253,30268,30227,30243,30261\"\n",
     "]\n",
     "\"\"\"---设置题号数据结束---\"\"\"\n",
     "\n",
@@ -207,7 +207,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.9.7 ('base')",
+   "display_name": "Python 3.8.8 ('base')",
    "language": "python",
    "name": "python3"
   },
@@ -221,12 +221,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.7"
+   "version": "3.8.8"
   },
   "orig_nbformat": 4,
   "vscode": {
    "interpreter": {
-    "hash": "e4cce46d6be9934fbd27f9ca0432556941ea5bdf741d4f4d64c6cd7f8dfa8fba"
+    "hash": "d311ffef239beb3b8f3764271728f3972d7b090c974f8e972fcdeedf230299ac"
    }
   }
  },
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 bdcf9bac..c179c0a5 100644
--- a/工具/题号选题pdf生成.ipynb
+++ b/工具/题号选题pdf生成.ipynb
@@ -2,16 +2,16 @@
  "cells": [
   {
    "cell_type": "code",
-   "execution_count": 5,
+   "execution_count": 7,
    "metadata": {},
    "outputs": [
     {
      "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_20221021.tex\n",
+      "开始编译教师版本pdf文件:  临时文件/test_教师用_20221022.tex\n",
       "0\n",
-      "开始编译学生版本pdf文件:  临时文件/题库_学生用_20221021.tex\n",
+      "开始编译学生版本pdf文件:  临时文件/test_学生用_20221022.tex\n",
       "0\n"
      ]
     }
@@ -26,13 +26,14 @@
     "\"\"\"---设置题目列表---\"\"\"\n",
     "#留空为编译全题库, a为读取临时文件中的题号筛选.txt文件生成题库\n",
     "problems = r\"\"\"\n",
+    "a\n",
     "\n",
     "\"\"\"\n",
     "\"\"\"---设置题目列表结束---\"\"\"\n",
     "\n",
     "\"\"\"---设置文件名---\"\"\"\n",
     "#目录和文件的分隔务必用/\n",
-    "filename = \"临时文件/题库\"\n",
+    "filename = \"临时文件/test\"\n",
     "\"\"\"---设置文件名结束---\"\"\"\n",
     "\n",
     "\n",
@@ -173,7 +174,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.9.7 ('base')",
+   "display_name": "Python 3.8.8 ('base')",
    "language": "python",
    "name": "python3"
   },
@@ -187,12 +188,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.7"
+   "version": "3.8.8"
   },
   "orig_nbformat": 4,
   "vscode": {
    "interpreter": {
-    "hash": "e4cce46d6be9934fbd27f9ca0432556941ea5bdf741d4f4d64c6cd7f8dfa8fba"
+    "hash": "d311ffef239beb3b8f3764271728f3972d7b090c974f8e972fcdeedf230299ac"
    }
   }
  },
diff --git a/文本处理工具/剪贴板文本整理_word文件.ipynb b/文本处理工具/剪贴板文本整理_word文件.ipynb
index 0d137649..2e059c87 100644
--- a/文本处理工具/剪贴板文本整理_word文件.ipynb
+++ b/文本处理工具/剪贴板文本整理_word文件.ipynb
@@ -480,7 +480,7 @@
  ],
  "metadata": {
   "kernelspec": {
-   "display_name": "Python 3.9.7 ('base')",
+   "display_name": "Python 3.8.8 ('base')",
    "language": "python",
    "name": "python3"
   },
@@ -494,12 +494,12 @@
    "name": "python",
    "nbconvert_exporter": "python",
    "pygments_lexer": "ipython3",
-   "version": "3.9.7"
+   "version": "3.8.8"
   },
   "orig_nbformat": 4,
   "vscode": {
    "interpreter": {
-    "hash": "e4cce46d6be9934fbd27f9ca0432556941ea5bdf741d4f4d64c6cd7f8dfa8fba"
+    "hash": "d311ffef239beb3b8f3764271728f3972d7b090c974f8e972fcdeedf230299ac"
    }
   }
  },
diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json
index 43d06ba0..a1f6bf10 100644
--- a/题库0.3/Problems.json
+++ b/题库0.3/Problems.json
@@ -294736,7 +294736,7 @@
     },
     "030208": {
         "id": "030208",
-        "content": "一个班的语文成绩的茎叶图如图所示, 则优秀率(80及以上)为\\blank{50}, 最高分是\\blank{50}, 最低分是\\blank{50}, 中位数是\\blank{50}.\n\\begin{center}\n\\begin{tabular}{c|ccccccccc}\n$6$ & $0$ & $3$ & $4$ & $4$ & $6$ & $7$ & $8$ & $8$ & $9$ \\\\ \n$7$ & $2$ & $3$ & $5$ & $5$ & $5$ & $6$ & $7$ & $9$ &  \\\\\n$8$ & $0$ & $2$ & $3$ & $3$ & $5$ & $7$ & $9$ &  &  \\\\ \n$9$ & $1$ &  &  &  &  &  &  &  &  \n\\end{tabular}\n\\end{center}",
+        "content": "一个班的语文成绩的茎叶图如图所示, 则优秀率(80及以上)为\\blank{50}, 最高分是\\blank{50}, 最低分是\\blank{50}, 中位数是\\blank{50}, 平均数是\\blank{50}, 标准差是\\blank{50}.\n\\begin{center}\n\\begin{tabular}{c|ccccccccc}\n$6$ & $0$ & $3$ & $4$ & $4$ & $6$ & $7$ & $8$ & $8$ & $9$ \\\\ \n$7$ & $2$ & $3$ & $5$ & $5$ & $5$ & $6$ & $7$ & $9$ &  \\\\\n$8$ & $0$ & $2$ & $3$ & $3$ & $5$ & $7$ & $9$ &  &  \\\\ \n$9$ & $1$ &  &  &  &  &  &  &  &  \n\\end{tabular}\n\\end{center}",
         "objs": [
             "K0905001B",
             "K0905002B"
@@ -294806,7 +294806,7 @@
     },
     "030211": {
         "id": "030211",
-        "content": "如图所示的茎叶图记录了甲、乙两组各$5$名工人某日的产量数据(单位: 件). 若这两组数据的中位数相等, 且平均值也相等, 则$x$和$y$的值分别为\\blank{50}.\n\\begin{center}\n\\begin{tabular}{r|c|l}\n甲组 &  & 乙组 \\\\ \\hline\n$6$ & $5$ & $9$ \\\\ \n$2\\ 5$ & $6$ & $1\\ 7\\ y$ \\\\ \n$x\\ 4$ & $7$ & $8$ \n\\end{tabular}\n\\end{center}",
+        "content": "如图所示的茎叶图记录了甲、乙两组各$5$名工人某日的产量数据(单位: 件). 若这两组数据的中位数相等, 且平均值也相等, 则$x$和$y$的值分别为\\blank{50}.\n\\begin{center}\n\\begin{tabular}{r|c|l}\n甲组 &  & 乙组 \\\\ \n$6$ & $5$ & $9$ \\\\ \n$2\\ 5$ & $6$ & $1\\ 7\\ y$ \\\\ \n$x\\ 4$ & $7$ & $8$ \n\\end{tabular}\n\\end{center}",
         "objs": [
             "K0905001B",
             "K0906004B"
@@ -295175,7 +295175,7 @@
     },
     "030227": {
         "id": "030227",
-        "content": "高二年级有男生$490$人, 女生$510$人, 张华按男生、女生进行分层, 通过分层随机抽样的方法, 得到男生、女生的平均身高分别为$170.2\\text{cm}$和$160.8\\text{cm}$.\\\\ \n(1) 如果张华在各层中按比例分配样本, 总样本量为$100$, 那么在男生、女生中分别抽取了多少名? 在这种情况下, 请估计高二年级全体学生的平均身高.\\\\\n(2) 如果张华从男生、女生中抽取的样本量分别为$30$和$70$, 那么在这种情况下, 如何估计高二年级全体学生的平均身高更合理?",
+        "content": "高二年级有男生$490$人, 女生$510$人, 张华按男生、女生进行分层, 通过分层随机抽样的方法, 得到男生、女生的平均身高分别为$170.2\\text{cm}$和$160.8\\text{cm}$.\\\\ \n(1) 如果张华在各层中按比例分配样本, 总样本量为$100$, 那么在男生、女生中分别抽取了多少名? 在这种情况下, 请估计高二年级全体学生的平均身高.\\\\\n(2) 如果张华从男生、女生中抽取的样本量分别为$30$和$70$, 那么在这种情况下, 请估计高二年级全体学生的平均身高.",
         "objs": [
             "K0906010B"
         ],
@@ -295977,7 +295977,7 @@
     },
     "030261": {
         "id": "030261",
-        "content": "已知总体划分为$3$层, 通过分层随机抽样, 各层抽取的样本量、样本平均数和样本方差分别为: $l,\\overline{x},s_1^2;m,\\overline{y},s_2^2;n,\\overline{z},s_3^2$. 记总的样本平均数为$\\overline{w}$, 样本方差为$s^2$, 证明:\\\\\n(1) $\\overline{w}=\\dfrac{l}{l+m+n}\\overline{x}+\\dfrac{m}{l+m+n}\\overline{y}+\\dfrac{n}{l+m+n}\\overline{z}$;\\\\\n(2) $s^2=\\dfrac{1}{l+m+n}(l(s_1^2+(\\overline{x}-\\overline{w})^2)+m(s_2^2+(\\overline{y}-\\overline{w})^2)+n(s_3^2+(\\overline{z}-\\overline{w})^2))$.",
+        "content": "已知总体划分为$3$层, 通过分层随机抽样, 各层抽取的样本量、样本平均数和样本方差分别为: $l,\\overline{x},s_1^2$; $m,\\overline{y},s_2^2$; $n,\\overline{z},s_3^2$. 记总的样本平均数为$\\overline{w}$, 样本方差为$s^2$, 证明:\\\\\n(1) $\\overline{w}=\\dfrac{l}{l+m+n}\\overline{x}+\\dfrac{m}{l+m+n}\\overline{y}+\\dfrac{n}{l+m+n}\\overline{z}$;\\\\\n(2) $s^2=\\dfrac{1}{l+m+n}(l(s_1^2+(\\overline{x}-\\overline{w})^2)+m(s_2^2+(\\overline{y}-\\overline{w})^2)+n(s_3^2+(\\overline{z}-\\overline{w})^2))$.",
         "objs": [
             "K0906010B"
         ],
@@ -296304,5 +296304,28 @@
         "related": [],
         "remark": "",
         "space": ""
+    },
+    "030275": {
+        "id": "030275",
+        "content": "为了调查某高中学生的身高数据, 按照分层随机抽样原则抽取了样本, 其中男生$34$名, 身高样本平均数为$173.1\\text{cm}$, 方差为$25.9$; 女生32名, 身高样本平均数为$161.3\\text{cm}$, 方差为$23.3$. 试用这些已知的数据求这$66$名高一年级学生身高的样本平均数和方差, 并估计高一年级学生身高的总体方差(结果精确到$0.01$).",
+        "objs": [
+            "K0906010B"
+        ],
+        "tags": [
+            "第九单元"
+        ],
+        "genre": "解答题",
+        "ans": "$167.38\\text{cm}$, $59.42\\text{cm}$, $59.42\\text{cm}$",
+        "solution": "",
+        "duration": -1,
+        "usages": [],
+        "origin": "空中课堂必修第三册例题与习题-改编",
+        "edit": [
+            "20221021\t王伟叶"
+        ],
+        "same": [],
+        "related": [],
+        "remark": "",
+        "space": "12ex"
     }
 }
\ No newline at end of file