diff --git a/工具/批量收录题目.py b/工具/批量收录题目.py index 5cd40553..579bd530 100644 --- a/工具/批量收录题目.py +++ b/工具/批量收录题目.py @@ -1,5 +1,5 @@ #修改起始id,出处,文件名 -starting_id = 40605 +starting_id = 40626 raworigin = "" filename = r"C:\Users\weiye\Documents\wwy sync\临时工作区\自拟题目12.tex" editor = "20230423\t王伟叶" diff --git a/工具/文本文件/metadata.txt b/工具/文本文件/metadata.txt index 84e3f980..9ee39cd1 100644 --- a/工具/文本文件/metadata.txt +++ b/工具/文本文件/metadata.txt @@ -1,65 +1,65 @@ ans -40605 -$6$ -40606 -$90$ +40626 +$3$ -40607 -$10$ +40627 +$462$ -40608 -$15$ +40628 +$1$ -40609 -$24$ +40629 +$240$ -40610 -$(0,\dfrac{9\sqrt{2}-2}4]$ +40630 +$\dfrac{31}3$ -40611 -$540$ +40631 +$2$或$3$ -40612 -$\dfrac{16\pi}3$ +40632 +$\mathrm{e}$ -40613 -$35$ +40633 +$2449440x^6$ -40614 -\textcircled{2}\textcircled{4} +40634 +$\dfrac{15}{56}$ -40615 -$[6,+\infty)$ +40635 +$(-\infty,1)$ -40616 -$\log_2 \mathrm{e}$ +40636 +$6790$ -40617 -C +40637 +$\dfrac{8\sqrt{3}}9$ -40618 +40638 A -40619 -D - -40620 +40639 B -40621 -(1) $\dfrac{\sqrt{10}}{10}$; (2) $\dfrac{3\sqrt{5}}{5}$ +40640 +C -40622 -(1) $80$; (2) $1$或$-3$ +40641 +B -40623 -(1) $\pm \sqrt{3}$; (2) 存在, 点$M$的坐标为$(-3,0)$ +40642 +(1) $y=-2x+2$; (2) $[3-\sqrt{6},3+\sqrt{6}]$ -40624 -(1) $\dfrac{x^2}4+y^2=1$; (2) $k=\pm 2$; (3) 定值为$\dfrac 23$, 证明略 +40643 +(1) $\dfrac 13$; (2) $\dfrac{17}{81}$ -40625 -(1) $y=-2$; (2) $k=0$或$4$; (3) $\dfrac 34-\ln 2$ +40644 +(1) $\theta=\dfrac\pi 4$时, $S=\dfrac{2-\sqrt{2}+\sqrt{3}}2R^2$, ``得地率''约为$74\%$; (2) $\theta = \arcsin\dfrac{1+\sqrt{33}}8$时, ``得地率''最大 +40645 +(1) $b=\sqrt{3}$; (2) $a=2$; (3) $C$的坐标为$(-\dfrac 43,-\dfrac 13)$或$(-\dfrac 43,\dfrac 13)$ + +40646 +(1) $f(x)$是``线性控制函数'', $g(x)$不是``线性控制函数'', 理由略; (2) 是真命题, 理由略; (3) 证明略 \ No newline at end of file diff --git a/题库0.3/Problems.json b/题库0.3/Problems.json index be7f622d..0d759921 100644 --- a/题库0.3/Problems.json +++ b/题库0.3/Problems.json @@ -475468,5 +475468,404 @@ "related": [], "remark": "", "space": "12ex" + }, + "040626": { + "id": "040626", + "content": "已知$\\mathrm{C}_9^x=\\mathrm{C}_9^{2 x}$, 则正整数$x=$\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$3$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题1", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040627": { + "id": "040627", + "content": "$\\mathrm{C}_4^4+\\mathrm{C}_5^4+\\mathrm{C}_6^4+\\mathrm{C}_7^4+\\mathrm{C}_8^4+\\mathrm{C}_9^4+\\mathrm{C}_{10}^4=$\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$462$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题2", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040628": { + "id": "040628", + "content": "函数$f(x)=\\dfrac{1}{2} x^2-2 x+\\ln x$的驻点为\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$1$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题3", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040629": { + "id": "040629", + "content": "$(x+\\dfrac{2}{\\sqrt{x}})^6$的二项展开式中常数项是\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$240$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题4", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040630": { + "id": "040630", + "content": "函数$f(x)=\\dfrac{1}{3} x^3+3 x^2+5 x+2$的极大值为\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$\\dfrac{31}3$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题5", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040631": { + "id": "040631", + "content": "已知男、女学生共有$8$人, 若从男生中任选$2$人, 从女生中任选$1$人, 共有$30$种不同的选法, 则女生的总人数为\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$2$或$3$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题6", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040632": { + "id": "040632", + "content": "已知函数$f(x)=(x-1) \\cdot \\mathrm{e}^x$, 则$\\displaystyle\\lim _{x \\to 1} \\dfrac{f(x)-f(1)}{x-1}=$\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$\\mathrm{e}$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题7", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040633": { + "id": "040633", + "content": "$(2+3 x)^{10}$的二项展开式中系数最大的项为\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$2449440x^6$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题8", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040634": { + "id": "040634", + "content": "一场晩会共有$5$个唱歌节目和$3$个舞蹈节目, 随机排序形成一个节目单, 则节目单中前$3$个节目有$2$个舞蹈节目的概率为\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$\\dfrac{15}{56}$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题9", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040635": { + "id": "040635", + "content": "已知关于$x$的不等式$x-\\ln x-a>0$对任意$x \\in(0,+\\infty)$恒成立, 则实数$a$的取值范围是\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$(-\\infty,1)$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题10", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040636": { + "id": "040636", + "content": "若$(1+x)^8+(2+x)^8=a_0+a_1(1-x)^1+a_2(1-x)^2+\\cdots+a_8(1-x)^8$对任意$x \\in \\mathbf{R}$恒成立, 则$a_4=$\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$6790$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题11", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040637": { + "id": "040637", + "content": "已知$A(a, 1-a^2)$, $B(b, 1-b^2)$, 其中$a b<0$, 过$A$、$B$分别作二次函数$y=1-x^2$的切线, 则两条切线与$x$轴围成的三角形面积的最小值为\\blank{50}.", + "objs": [], + "tags": [], + "genre": "填空题", + "ans": "$\\dfrac{8\\sqrt{3}}9$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题12", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040638": { + "id": "040638", + "content": "在古典概率模型中, $\\Omega$是样本空间, $x$是样本点, $A$是随机事件, 则下列表述正确的\\bracket{20}.\n\\fourch{$x \\in \\Omega$}{$x \\subseteq \\Omega$}{$A \\in \\Omega$}{$\\Omega \\subseteq A$}", + "objs": [], + "tags": [], + "genre": "选择题", + "ans": "A", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题13", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040639": { + "id": "040639", + "content": "已知$A$、$B$为两个随机事件, 则``$A$、$B$为互斥事件''是``$A$、$B$为对立事件''的\\bracket{20}.\n\\twoch{充分非必要条件}{必要非充分条件}{充要条件}{非充分非必要条件}", + "objs": [], + "tags": [], + "genre": "选择题", + "ans": "B", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题14", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040640": { + "id": "040640", + "content": "下列关于排列数$\\mathrm{P}_n^{m-1}$和组合数$\\mathrm{C}_n^{m-1}$的计算中正确的是\\bracket{20}.\n\\twoch{$\\mathrm{P}_n^{m-1}=\\dfrac{n !}{(m-1) !}$}{$\\mathrm{P}_n^{m-1}=\\dfrac{n !}{(n-m-1) !}$}{$\\mathrm{C}_n^{m-1}=\\dfrac{n !}{(m-1) !(n-m+1) !}$}{$\\mathrm{C}_n^{m-1}=\\dfrac{n !}{(m-1) !(n-m-1) !}$}", + "objs": [], + "tags": [], + "genre": "选择题", + "ans": "C", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题15", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "" + }, + "040641": { + "id": "040641", + "content": "已知$x \\in \\mathbf{N}$, $y \\in \\mathbf{N}$, $x=latex]\n\\def\\t{50}\n\\draw (3,0) node [below] {$N$} coordinate (N);\n\\draw (-3,0) node [below] {$M$} coordinate (M);\n\\filldraw (0,0) circle (0.03) node [below] {$O$} coordinate (O);\n\\draw (N) arc (0:180:3) -- cycle;\n\\draw (30:3) node [above right] {$F$} coordinate (F);\n\\draw (150:3) node [above left] {$I$} coordinate (I);\n\\draw (F) -- ($(M)!(F)!(N)$) node [below] {$E$} coordinate (E);\n\\draw (I) -- ($(M)!(I)!(N)$) node [below] {$H$} coordinate (H);\n\\draw (\\t:3) node [above right] {$C$} coordinate (C);\n\\draw ({180-\\t}:3) node [above left] {$D$} coordinate (D);\n\\draw (C) -- ($(M)!(C)!(N)$) node [below] {$B$} coordinate (B);\n\\draw (D) -- ($(M)!(D)!(N)$) node [below] {$A$} coordinate (A);\n\\draw (C)--(D);\n\\draw (I) -- ($(A)!(I)!(D)$) node [right] {$J$} coordinate (J);\n\\draw (F) -- ($(B)!(F)!(C)$) node [left] {$G$} coordinate (G);\n\\draw ($(A)!0.5!(C)$) node {海洋球池};\n\\draw ($(A)!0.5!(I)$) node {息};\n\\draw ($(A)!0.5!(I)$) ++ (0,0.4) node {休};\n\\draw ($(A)!0.5!(I)$) ++ (0,-0.4) node {区};\n\\draw ($(B)!0.5!(F)$) node {息};\n\\draw ($(B)!0.5!(F)$) ++ (0,0.4) node {休};\n\\draw ($(B)!0.5!(F)$) ++ (0,-0.4) node {区};\n\\end{tikzpicture}\n\\end{center}\n(1) 求当$\\theta=\\dfrac{\\pi}{4}$时该亲子乐园可供人活动的区域面积$S$, 并求出此时的``得地率''(结果精确到$1 \\%)$;\\\\\n(2) 求当$\\theta$为多大时, 该亲子乐园的``得地率''最大?", + "objs": [], + "tags": [], + "genre": "解答题", + "ans": "(1) $\\theta=\\dfrac\\pi 4$时, $S=\\dfrac{2-\\sqrt{2}+\\sqrt{3}}2R^2$, ``得地率''约为$74\\%$; (2) $\\theta = \\arcsin\\dfrac{1+\\sqrt{33}}8$时, ``得地率''最大", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题19", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "12ex" + }, + "040645": { + "id": "040645", + "content": "已知椭圆$\\Gamma: \\dfrac{x^2}{a^2}+\\dfrac{y^2}{b^2}=1$($a>b>0$)的左、右焦点分别为$F_1$、$F_2$. 椭圆$\\Gamma$上有互异的且不在$x$轴上的三点$A$、$B$、$C$满足直线$AC$经过$F_1$, 直线$BC$经过$F_2$.\\\\\n(1) 若椭圆$\\Gamma$的长轴长为 $4$ , 离心率为$\\dfrac{1}{2}$, 求$b$的值;\\\\\n(2) 若点$C$的坐标为$(0,1)$, $\\triangle ABC$的面积$S=\\dfrac{64}{49} \\sqrt{3}$, 求$a$的值;\\\\\n(3) 若$a=\\sqrt{2}$, $b=1$, 直线$AB$经过点$(\\dfrac{3}{2}, 0)$, 求$C$的坐标.", + "objs": [], + "tags": [], + "genre": "解答题", + "ans": "(1) $b=\\sqrt{3}$; (2) $a=2$; (3) $C$的坐标为$(-\\dfrac 43,-\\dfrac 13)$或$(-\\dfrac 43,\\dfrac 13)$", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题20", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "12ex" + }, + "040646": { + "id": "040646", + "content": "已知定义在$\\mathbf{R}$上的函数$f(x)$的导函数为$f'(x)$, 若$|f'(x)| \\leq 1$对任意$x \\in \\mathbf{R}$恒成立, 则称函数$f(x)$为``线性控制函数''.\\\\\n(1) 判断函数$f(x)=\\sin x$和$g(x)=\\mathrm{e}^x$是否为``线性控制函数'', 并说明理由;\\\\\n(2) 若函数$f(x)$为``线性控制函数'', 且$f(x)$在$\\mathbf{R}$上严格增, 设$A$、$B$为函数$f(x)$图像上互异的两点, 设直线$AB$的斜率为$k$, 判断命题``$00$)为周期的周期函数, 证明: 对任意$x_1$、$x_2$都有$|f(x_1)-f(x_2)| \\leq T$.", + "objs": [], + "tags": [], + "genre": "解答题", + "ans": "(1) $f(x)$是``线性控制函数'', $g(x)$不是``线性控制函数'', 理由略; (2) 是真命题, 理由略; (3) 证明略", + "solution": "", + "duration": -1, + "usages": [], + "origin": "202304建平高二期中考试试题21", + "edit": [ + "20230423\t王伟叶" + ], + "same": [], + "related": [], + "remark": "", + "space": "12ex" } } \ No newline at end of file