20230109 noon 添加2023届春考回忆版试题

This commit is contained in:
WangWeiye 2023-01-09 11:28:51 +08:00
parent ea8f369923
commit 89de588612
6 changed files with 440 additions and 581 deletions

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@ -19,7 +19,7 @@
"source": [
"import os,re,json\n",
"\"\"\"这里编辑题号(列表)后将在vscode中打开窗口, 编辑后保存关闭, 随后运行第二个代码块\"\"\"\n",
"problems = \"30524\"\n",
"problems = \"30552\"\n",
"\n",
"def generate_number_set(string,dict):\n",
" string = re.sub(r\"[\\n\\s]\",\"\",string)\n",

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@ -2,16 +2,16 @@
"cells": [
{
"cell_type": "code",
"execution_count": 8,
"execution_count": 2,
"metadata": {},
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": [
"首个空闲id: 12739 , 直至 020000\n",
"首个空闲id: 12760 , 直至 020000\n",
"首个空闲id: 21441 , 直至 030000\n",
"首个空闲id: 31057 , 直至 999999\n"
"首个空闲id: 31158 , 直至 999999\n"
]
}
],
@ -45,7 +45,7 @@
],
"metadata": {
"kernelspec": {
"display_name": "mathdept",
"display_name": "Python 3.8.15 ('mathdept')",
"language": "python",
"name": "python3"
},
@ -59,12 +59,12 @@
"name": "python",
"nbconvert_exporter": "python",
"pygments_lexer": "ipython3",
"version": "3.9.15"
"version": "3.8.15"
},
"orig_nbformat": 4,
"vscode": {
"interpreter": {
"hash": "ff3c292c316ba85de6f1ad75f19c731e79d694e741b6f515ec18f14996fe48dc"
"hash": "42dd566da87765ddbe9b5c5b483063747fec4aacc5469ad554706e4b742e67b2"
}
}
},

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@ -7,10 +7,10 @@
"outputs": [],
"source": [
"#修改起始id,出处,文件名\n",
"starting_id = 31057\n",
"origin = \"\"\n",
"filename = r\"C:\\Users\\weiye\\Documents\\wwy sync\\临时工作区\\自拟题目4.tex\"\n",
"editor = \"20230108\\t王伟叶\""
"starting_id = 12739\n",
"origin = \"2011届春季高考\"\n",
"filename = r\"C:\\Users\\weiye\\Documents\\wwy sync\\临时工作区\\自拟题目7.tex\"\n",
"editor = \"20230109\\t王伟叶\""
]
},
{
@ -70,8 +70,8 @@
" pid = str(id).zfill(6)\n",
" if pid in pro_dict:\n",
" duplicate_flag = True\n",
" NewProblem = CreateNewProblem(id = pid, content = p, origin = origin , dict = pro_dict,editor = editor)\n",
" # NewProblem = CreateNewProblem(id = pid, content = p, origin = origin + \"试题\" + str(id- starting_id+1), dict = pro_dict,editor = editor)\n",
" # NewProblem = CreateNewProblem(id = pid, content = p, origin = origin , dict = pro_dict,editor = editor)\n",
" NewProblem = CreateNewProblem(id = pid, content = p, origin = origin + \"试题\" + str(id- starting_id+1), dict = pro_dict,editor = editor)\n",
" pro_dict[pid] = NewProblem\n",
" id += 1\n",
"\n",
@ -101,7 +101,7 @@
],
"metadata": {
"kernelspec": {
"display_name": "mathdept",
"display_name": "Python 3.9.15 ('pythontest')",
"language": "python",
"name": "python3"
},
@ -120,7 +120,7 @@
"orig_nbformat": 4,
"vscode": {
"interpreter": {
"hash": "ff3c292c316ba85de6f1ad75f19c731e79d694e741b6f515ec18f14996fe48dc"
"hash": "91219a98e0e9be72efb992f647fe78b593124968b75db0b865552d6787c8db93"
}
}
},

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"name": "stdout",
"output_type": "stream",
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"031047 解答题\n",
"031048 解答题\n",
"031049 解答题\n",
"031050 解答题\n",
"031051 解答题\n",
"031052 解答题\n",
"031053 解答题\n",
"031054 解答题\n",
"031055 解答题\n",
"031056 解答题\n",
"031057 填空题\n",
"031058 填空题\n",
"031059 选择题\n",
"031060 填空题\n",
"031061 选择题\n",
"031062 填空题\n",
"031063 填空题\n",
"031064 填空题\n",
"031065 填空题\n",
"031066 填空题\n",
"031067 选择题\n",
"031068 选择题\n",
"031069 填空题\n",
"031070 填空题\n",
"031071 填空题\n",
"031072 填空题\n",
"031073 填空题\n",
"031074 填空题\n",
"031075 选择题\n",
"031076 选择题\n",
"031077 解答题\n",
"031078 解答题\n",
"031079 解答题\n",
"031080 解答题\n",
"031081 解答题\n",
"031082 解答题\n",
"031083 解答题\n",
"031084 解答题\n",
"031085 解答题\n",
"031086 解答题\n",
"031087 解答题\n",
"031088 解答题\n",
"031089 解答题\n",
"031090 解答题\n",
"031091 解答题\n",
"031092 解答题\n",
"031093 解答题\n",
"031094 解答题\n",
"031095 填空题\n",
"031096 填空题\n",
"031097 填空题\n",
"031098 填空题\n",
"031099 填空题\n",
"031100 填空题\n",
"031101 填空题\n",
"031102 填空题\n",
"031103 填空题\n",
"031104 填空题\n",
"031105 填空题\n",
"031106 选择题\n",
"031107 选择题\n",
"031108 选择题\n",
"031109 选择题\n",
"031110 解答题\n",
"031111 解答题\n",
"031112 解答题\n",
"031113 解答题\n",
"031114 解答题\n",
"031115 解答题\n",
"031116 解答题\n",
"031117 解答题\n",
"031118 填空题\n",
"031119 填空题\n",
"031120 填空题\n",
"031121 填空题\n",
"031122 填空题\n",
"031123 填空题\n",
"031124 填空题\n",
"031125 填空题\n",
"031126 填空题\n",
"031127 填空题\n",
"031128 填空题\n",
"031129 解答题\n",
"031130 解答题\n",
"031131 解答题\n",
"031132 解答题\n",
"031133 解答题\n",
"031134 填空题\n",
"031135 填空题\n",
"031136 填空题\n",
"031137 填空题\n",
"031138 填空题\n",
"031139 选择题\n",
"031140 选择题\n",
"031141 选择题\n",
"031142 选择题\n",
"031143 选择题\n",
"031144 选择题\n",
"031145 解答题\n",
"031146 填空题\n",
"031147 填空题\n",
"031148 填空题\n",
"031149 填空题\n",
"031150 填空题\n",
"031151 填空题\n",
"031152 填空题\n",
"031153 填空题\n",
"031154 填空题\n",
"031155 选择题\n",
"031156 选择题\n",
"031157 选择题\n"
"012739 填空题\n",
"012740 填空题\n",
"012741 填空题\n",
"012742 填空题\n",
"012743 填空题\n",
"012744 填空题\n",
"012745 填空题\n",
"012746 填空题\n",
"012747 填空题\n",
"012748 填空题\n",
"012749 填空题\n",
"012750 填空题\n",
"012751 选择题\n",
"012752 选择题\n",
"012753 选择题\n",
"012754 选择题\n",
"012755 解答题\n",
"012756 解答题\n",
"012757 解答题\n",
"012758 解答题\n",
"012759 解答题\n"
]
}
],
@ -611,7 +71,7 @@
],
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@ -630,7 +90,7 @@
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@ -522,7 +522,7 @@
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@ -541,7 +541,7 @@
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View File

@ -313927,6 +313927,405 @@
"remark": "",
"space": "12ex"
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"012739": {
"id": "012739",
"content": "已知集合$A=\\{1,2\\}$, $B=\\{1, a\\}$, 且$A=B$, 则$a=$\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题1",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012740": {
"id": "012740",
"content": "已知向量$\\overrightarrow a=(3,4)$, $\\overrightarrow b=(1,2)$, 则$\\overrightarrow a-2 \\overrightarrow b=$\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题2",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012741": {
"id": "012741",
"content": "若不等式$|x-1|\\leq 2$, 则$x$的取值范围是\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题3",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012742": {
"id": "012742",
"content": "已知圆$C$的一般方程为$x^2+2 x+y^2=0$, 则圆$C$的半径为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题4",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012743": {
"id": "012743",
"content": "已知事件$A$发生的概率为$P(A)=0.5$, 则它的对立事件的概率$P(\\overline A)=$\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题5",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012744": {
"id": "012744",
"content": "已知正实数$a$、$b$满足$a+4 b=1$, 则$a b$的最大值为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题6",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012745": {
"id": "012745",
"content": "某校抽取$100$名学生测身高, 其中身高最大值为$186 \\text{cm}$, 最小值$154 \\text{cm}$, 根据身高数据绘制频率组距分布直方图, 组距为 $5$, 且第一组下限为$153.5 \\text{cm}$, 则组数为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题7",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012746": {
"id": "012746",
"content": "设$(1-2 x)^4=a_0+a_1 x+a_2 x^2+a_3 x^3+a_4 x^4$, 则$a_0+a_4=$\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题8",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012747": {
"id": "012747",
"content": "已知函数$f(x)=2^{-x}+1$, 且$g(x)=\\begin{cases}\\log_2(x+1), & x \\geq 0, \\\\f(-x), & x<0,\\end{cases}$ 则方程$g(x)=2$的解为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题9",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012748": {
"id": "012748",
"content": "在$4$名男生, $6$名女生中任选$3$人, 则恰有$1$名男生和$2$名女生的概率为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题10",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012749": {
"id": "012749",
"content": "设$z_1$、$z_2 \\in \\mathbf{C}$且$z_1=\\mathrm{i} \\cdot \\overline{z_2}$, 满足$|z_1-1|=1$, 则$|z_1-z_2|$的取值范围为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题11",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012750": {
"id": "012750",
"content": "设$\\overrightarrow{OA}$、$\\overrightarrow{OB}$、$\\overrightarrow{OC}$为空间中三个单位向量, 且$\\overrightarrow{OA} \\perp \\overrightarrow{OB}$, $\\overrightarrow{OA} \\perp \\overrightarrow{OC}$, $\\overrightarrow{OB}$与$\\overrightarrow{OC}$夹角为$60^{\\circ}$, $P$为空间任意一点, 且$|\\overrightarrow{OP}|=1$, 满足$|\\overrightarrow{OP} \\cdot \\overrightarrow{OC}|\\leq|\\overrightarrow{OP} \\cdot \\overrightarrow{OB}|\\leq|\\overrightarrow{OP} \\cdot \\overrightarrow{OA}|$, 则$|\\overrightarrow{OP} \\cdot \\overrightarrow{OC}|$的最大值为\\blank{50}.",
"objs": [],
"tags": [],
"genre": "填空题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题12",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012751": {
"id": "012751",
"content": "下列函数是偶函数的是\\bracket{20}.\n\\fourch{$y=\\sin x$}{$y=\\cos x$}{$y=x^3$}{$y=2^x$}",
"objs": [],
"tags": [],
"genre": "选择题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题13",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012752": {
"id": "012752",
"content": "根据下图判断, 下列选项错误的是\\bracket{20}.\n\\begin{center}\n\\begin{tikzpicture}[>=latex]\n\\foreach \\i in {2017,2018,...,2021} {\\draw ({(\\i-2016)*2-1},0) node [below] {$\\i$年};};\n\\foreach \\i/\\j in {1/10000,2/20000,3/30000,4/40000,5/50000} {\\draw [gray] (10,\\i) -- (0,\\i) node [black,left] {$\\j$};}; \n\\foreach \\i/\\j/\\k in {1/1.312031/1.911751,2/1.366685/2.034308,3/1.372091/2.032591,4/1.372536/2.110311,5/1.571867/2.489168}\n{\\fill [white] ({2*\\i-1.5},0) --++ (0,\\j) --++ (1,0) --++ (0,{-\\j});\n\\fill [gray!50] ({2*\\i-1.5},\\j) --++ (0,\\k) --++ (1,0) --++ (0,{-\\k});\n\\draw ({2*\\i-1.5},0) --++ (0,\\j) --++ (1,0) --++ (0,{-\\j});\n\\draw ({2*\\i-1.5},\\j) --++ (0,\\k) --++ (1,0) --++ (0,{-\\k});\n};\n\\foreach \\i/\\j/\\k in {1/1.312031/13120.31,2/1.366685/13666.85,3/1.372091/13720.91,4/1.372536/13725.36,5/1.571867/15718.67}\n{\\draw ({2*\\i-1},{\\j/2}) node {\\tiny $\\k$};};\n\\foreach \\i/\\j/\\k/\\n in {1/1.312031/1.911751/19117.51,2/1.366685/2.034308/20343.08,3/1.372091/2.032591/20325.91,4/1.372536/2.110311/21103.11,5/1.571867/2.489168/24891.68}\n{\\draw ({2*\\i-1},{\\j+\\k/2}) node {\\tiny $\\n$};};\n\\filldraw [fill = gray!50] (10.5,3) rectangle (10.7,3.2) (10.9,3.1) node [right] {货物进口额};\n\\draw (10.5,2) rectangle (10.7,2.2) (10.9,2.1) node [right] {货物出口额};\n\\draw [->] (0,0) -- (10,0) node [below] {年份};\n\\draw [->] (0,0) -- (0,5.5) node [left] {亿元};\n\\draw (5,-1) node {2017-2021年上海市货物进出口总额};\n\\end{tikzpicture}\n\\end{center}\n\\onech{从 2018 年开始, 2021 的进出口总额增长率最大}{从 2018 年开始, 进出口总额逐年增大}{从 2018 年开始, 进口总额逐年增大}{从 2018 年开始, 2020 的进出口总额增长率最小}",
"objs": [],
"tags": [],
"genre": "选择题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题14",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012753": {
"id": "012753",
"content": "如图所示, 正方体$ABCD-A_1B_1C_1D_1$中, $P$是$A_1C_1$上的动点, 则下列直线中, 始终与直线$BP$异面的是\\bracket{20}.\n\\begin{center}\n\\begin{tikzpicture}[>=latex]\n\\def\\l{2}\n\\draw (0,0,0) node [below left] {$A$} coordinate (A);\n\\draw (A) ++ (\\l,0,0) node [below right] {$B$} coordinate (B);\n\\draw (A) ++ (\\l,0,-\\l) node [right] {$C$} coordinate (C);\n\\draw (A) ++ (0,0,-\\l) node [left] {$D$} coordinate (D);\n\\draw (A) -- (B) -- (C);\n\\draw [dashed] (A) -- (D) -- (C);\n\\draw (A) ++ (0,\\l,0) node [left] {$A_1$} coordinate (A1);\n\\draw (B) ++ (0,\\l,0) node [right] {$B_1$} coordinate (B1);\n\\draw (C) ++ (0,\\l,0) node [above right] {$C_1$} coordinate (C1);\n\\draw (D) ++ (0,\\l,0) node [above left] {$D_1$} coordinate (D1);\n\\draw (A1) -- (B1) -- (C1) -- (D1) -- cycle;\n\\draw (A) -- (A1) (B) -- (B1) (C) -- (C1);\n\\draw [dashed] (D) -- (D1);\n\\draw (A1) -- (C1);\n\\filldraw ($(A1)!0.4!(C1)$) circle (0.03) node [above] {$P$} coordinate (P);\n\\draw [dashed] (B) -- (P);\n\\end{tikzpicture}\n\\end{center}\n\\fourch{$DD_1$}{$AC$}{$AD_1$}{$B_1C$}",
"objs": [],
"tags": [],
"genre": "选择题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题15",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012754": {
"id": "012754",
"content": "数列$\\{a_n\\}$的各项均为实数, $S_n$为其前$n$项和, 对任意$k>2022$($k \\in \\mathbf{N}$)都有$|S_k|>|S_{k+1}|$, 则下列各数列中, 可能使条件成立的数列是\\bracket{20}.\n\\onech{$a_1$、$a_3$、$a_5$、$\\cdots$、$a_{2 n-1}$为等差数列, $a_2$、$a_4$、$a_6$、$\\cdots$、$a_{2 n}$为等比数列}{$a_1$、$a_3$、$a_5$、$\\cdots$、$a_{2 n-1}$为等比数列, $a_2$、$a_4$、$a_6$、$\\cdots$、$a_{2 n}$为等差数列}{$a_1$、$a_2$、$a_3$、$\\cdots$、$a_{2022}$为等差数列, $a_{2023}$、$a_{2024}$、$\\cdots$、$a_n$为等比数列}{$a_1$、$a_2$、$a_3$、$\\cdots$、$a_{2022}$为等比数列, $a_{2023}$、$a_{2024}$、$\\cdots$、$a_n$为等差数列}",
"objs": [],
"tags": [],
"genre": "选择题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题16",
"edit": [
"20230109\t王伟叶"
],
"same": [],
"related": [],
"remark": "",
"space": ""
},
"012755": {
"id": "012755",
"content": "已知$PA \\perp$平面$ABC$, $AB \\perp AC$, $PA=AB=3$, $AC=4$, $M$为$BC$中点, 过点$M$分别作平行于平面$PAB$的直线交$AC$、$PC$于点$E$、$F$.\n\\begin{center}\n\\begin{tikzpicture}[>=latex,scale = 0.7]\n\\draw (0,0,0) node [left] {$A$} coordinate (A);\n\\draw (4,0,0) node [right] {$C$} coordinate (C);\n\\draw (0,3,0) node [above] {$P$} coordinate (P);\n\\draw (0,0,3) node [left] {$B$} coordinate (B);\n\\draw ($(B)!0.5!(C)$) node [below] {$M$} coordinate (M);\n\\draw ($(C)!0.5!(P)$) node [above] {$E$} coordinate (E);\n\\draw ($(A)!0.5!(C)$) node [above right] {$F$} coordinate (F);\n\\draw (P)--(B)--(C)--cycle (E)--(M);\n\\draw [dashed] (P)--(A)--(B) (E)--(F)--(M) (A)--(C);\n\\end{tikzpicture}\n\\end{center}\n(1) 求直线$PM$与平面$ABC$所成的角;\\\\\n(2) 证明: 平面$MEF\\parallel$平面$PAB$, 并求直线$ME$到平面$PAB$的距离.",
"objs": [],
"tags": [],
"genre": "解答题",
"ans": "",
"solution": "",
"duration": -1,
"usages": [],
"origin": "2023届春季高考试题17",
"edit": [
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"012756": {
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"content": "在$\\triangle ABC$中, 角$A$、$B$、$C$对应边为$a$、$b$、$c$, 其中$b=2$.\\\\\n(1) 若$A+C=\\dfrac{2 \\pi}3$, 且$a=2 c$, 求边长$c$的值;\\\\\n(2) 若$A-C=\\dfrac{\\pi}{12}$, $a=\\sqrt 2 c \\sin A$, 求$\\triangle ABC$的面积.",
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"origin": "2023届春季高考试题18",
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"012757": {
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"content": "为了节能环保, 节约材料、定义建筑物的 ``体形系数'' 为$S=\\dfrac{F_0}{V_0}$, 其中$F_0$为建筑物暴露在空气中的面积 (单位: 平方米), $V_0$为建筑物的体积 (单位: 立方米).\\\\\n(1) 若有一圆柱形建筑物的底面半径为$R$, 高度为$H$, 求该建筑物的 ``体形系数'';(结果用含$R$、$H$的代数式表示)\\\\\n(2) 定义建筑物的 ``形状因子'' 为$f=\\dfrac{L^2}A$, 其中$A$为底面面积, $L$为建筑底面周长, 又定义$T$为总建筑面积, 即为每层建筑面积总和 (每层建筑面积为每一层的底面面积). 现有一垂直于底面的宿舍, 已知该宿舍的层高为$3$米, 有$n$层, 其 ``形状因子''$f=18$, 总建筑面积为$T=10000$平方米, 试求当该宿舍的层数$n$为多少时, ``体形系数''$S$最小.",
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"origin": "2023届春季高考试题19",
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"012758": {
"id": "012758",
"content": "椭圆$\\Gamma: \\dfrac{x^2}{m^2}+\\dfrac{y^2}3=1$($m>0$, $m \\neq \\sqrt 3$).\\\\\n(1) 若$m=2$, 求椭圆$\\Gamma$的离心率;\\\\\n(2) 设$A_1$、$A_2$为椭圆$\\Gamma$的左右顶点, 椭圆$\\Gamma$上一点$E$的纵坐标为$1$, 且$\\overrightarrow{EA_1} \\cdot \\overrightarrow{EA_2}=-2$, 求$m$的值;\\\\\n(3) 过椭圆$\\Gamma$上一点$P$作斜率为$\\sqrt 3$的直线, 与双曲线$\\dfrac{y^2}{5 m^2}-\\dfrac{x^2}5=1$有一个公共点, 求$m$的取值范围.",
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"origin": "2023届春季高考试题20",
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"012759": {
"id": "012759",
"content": "设函数$f(x)=a x^3-(a+1) x^2+x$, $g(x)=k x+m$, 其中$a \\geq 0$, $k$、$m \\in \\mathbf{R}$, 若对任意$x \\in[0,1]$均有$f(x) \\leq g(x)$, 则称函数$y=g(x)$是函数$y=f(x)$的 ``控制函数''. 对于$x_0\\in [0,1]$以及定义域包含$[0,1]$上的函数$y=f(x)$, 若对所有$y=f(x)$的控制函数$y=g(x)$, $g(x_0)$有最小值, 就将该最小值定义为$\\overline f(x_0)$.\\\\\n(1) 若$a=2$, $g(x)=x$, 试问$y=g(x)$是否为函数$y=f(x)$的 ``控制函数'';\\\\\n(2) 若$a=0$, 使得直线$y=h(x)$是曲线$y=f(x)$在$x=\\dfrac 14$处的切线. 证明: 函数$y=h(x)$为函数$y=f(x)$的 ``控制函数'', 并求$\\overline f(\\dfrac 14)$的值;\\\\\n(3) 若曲线$y=f(x)$在$x=x_0$, $x_0 \\in(0,1)$处的切线过点$(1,0)$, 且$c \\in[x_0,1]$. 证明: 当且仅当$c=x_0$或$c=1$时, $\\overline f(c)=f(c)$.",
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"020001": {
"id": "020001",
"content": "判断下列各组对象能否组成集合, 若能组成集合, 指出是有限集还是无限集.\\\\\n(1) 上海市控江中学$2022$年入学的全体高一年级新生;\\\\\n(2) 中国现有各省的名称;\\\\\n(3) 太阳、$2$、上海市;\\\\\n(4) 大于$10$且小于$15$的有理数;\\\\\n(5) 末位是$3$的自然数;\\\\\n(6) 影响力比较大的中国数学家;\\\\\n(7) 方程$x^2+x-3=0$的所有实数解;\\\\ \n(8) 函数$y=\\dfrac 1x$图像上所有的点;\\\\ \n(9) 在平面直角坐标系中, 到定点$(0, 0)$的距离等于$1$的所有点;\\\\\n(10) 不等式$3x-10<0$的所有正整数解;\\\\\n(11) 所有的平面四边形.",
@ -360505,7 +360904,7 @@
},
"030552": {
"id": "030552",
"content": "某城市高中数学统考, 假设考试成服从正态分布$N(75,8^2)$. 如果按照$16 \\%, 34 \\%, 34 \\%, 16 \\%$的比例将考试成绩分为A, B, C, D四个等级, 试确定各等级的分数线(精确到$1$分).",
"content": "某城市高中数学统考, 假设考试成服从正态分布$N(75,8^2)$. 如果按照$16 \\%, 34 \\%, 34 \\%, 16 \\%$的比例将考试成绩分为A, B, C, D四个等级, 试确定各等级的分数线(精确到$1$分).",
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"第八单元"