录入25届周末卷11补充题并建立related

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weiye.wang 2024-01-06 22:07:10 +08:00
parent f106f09c9b
commit 6a9b0bd235
1 changed files with 219 additions and 4 deletions

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"20220701\t王伟叶" "20220701\t王伟叶"
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@ -259068,7 +259070,9 @@
"20220726\t王伟叶" "20220726\t王伟叶"
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"023256"
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@ -323358,7 +323362,9 @@
"20220819\t王伟叶" "20220819\t王伟叶"
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@ -560881,7 +560887,9 @@
"20230101\t王伟叶" "20230101\t王伟叶"
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@ -622544,6 +622552,213 @@
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"023256": {
"id": "023256",
"content": "$1,2,3,4,5$ 这五个数字中任取不重复的 $3$ 个数字组成一个三位数, 则组成的三位数是奇数的概率是\\blank{50}.",
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"genre": "填空题",
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"023257": {
"id": "023257",
"content": "某班有 $50$ 名学生, 其中 $15$ 人选修 $A$ 课程, 另外 $35$ 人选修 $B$ 课程. 从班级中任选两名学生, 他们是选修不同课程的学生的概率是\\blank{50}.",
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"023258": {
"id": "023258",
"content": "两部不同的长篇小说各由第一、二、三、四卷组成, 每卷 $1$ 本, 共 $8$ 本. 将它们任意地排成一排, 左边 $4$ 本恰好都属于同一部小说的概率是\\blank{50}.",
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"023259": {
"id": "023259",
"content": "在一个口袋中装有 $5$ 个白球和 $3$ 个黑球, 这些球除颜色外完全相同, 从中摸出 $3$ 个球,至少摸到 $2$ 个黑球的概率等于\\blank{50}.",
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"genre": "填空题",
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"duration": -1,
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"023260": {
"id": "023260",
"content": "用 $0 \\sim 9$ 这十个数字组成没有重复数字的五位数, 任取一个五位数, 奇数位上都是偶数的概率是\\blank{50}.",
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"023261": {
"id": "023261",
"content": "甲、乙等五名奥运志愿者被随机地分到 A, B, C, D 四个不同的岗位服务, 每个岗位至少有一名志愿者, 则甲、乙两人不在同一个岗位服务的概率是\\blank{50}.",
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"genre": "填空题",
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"023262": {
"id": "023262",
"content": "等差数列 $\\{a_n\\}$ 的前 $n$ 项和为 $S_n$, 已知 $S_{10}=0$, $S_{15}=25$, 则 $n S_n$ 的最小值为\\blank{50}.",
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"023263": {
"id": "023263",
"content": "在正项等比数列 $\\{a_n\\}$ 中, $a_5=\\dfrac{1}{2}$, $a_6+a_7=3$, 则满足 $a_1+a_2+\\cdots+a_n>a_1 a_2 \\cdots a_n$ 的最大正整数 $n$ 的值为\\blank{50}.",
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"023264": {
"id": "023264",
"content": "一个盒子里放有分别写着编号为 $0$、$1$、$2$、$3$ 的四张卡片, 从中任意取两张, 求卡片上的两个编号之积为偶数的概率.",
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"genre": "解答题",
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"023265": {
"id": "023265",
"content": "给定数列 $a_1, a_2, \\cdots, a_n$, 对 $i=1,2, \\cdots, n-1$, 该数列前 $i$ 项 $a_1, a_2, \\cdots, a_i$ 中的最大值记为 $A_i$, 后 $n-i$ 项 $a_{i+1}, a_{i+2}, \\cdots, a_n$ 的最小值记为 $B_i$, 设 $d_i=A_i-B_i$.\\\\\n(1) 设数列 $\\{a_n\\}$ 为 $3,4,7,1$ . 写出 $d_1, d_2, d_3$ 的值;\\\\\n(2) 设 $a_1, a_2, \\cdots, a_n$($n \\geq 4$) 是公比大于 $1$ 的等比数列,且 $a_1>0$ . 证明: $d_1, d_2, \\cdots, d_{n-1}$是等比数列;\n(3) 设 $d_1, d_2, \\cdots, d_{n-1}$ 是公差大于 $0$ 的等差数列, 且 $d_1>0$, 证明: $a_1, a_2, \\cdots, a_{n-1}$是等差数列.",
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"030001": { "030001": {
"id": "030001", "id": "030001",
"content": "若$x,y,z$都是实数, 则:(填写``\\textcircled{1} 充分非必要、\\textcircled{2} 必要非充分、\\textcircled{3} 充要、\\textcircled{4} 既非充分又非必要''之一)\\\\\n(1) ``$xy=0$''是``$x=0$''的\\blank{50}条件;\\\\\n(2) ``$x\\cdot y=y\\cdot z$''是``$x=z$''的\\blank{50}条件;\\\\\n(3) ``$\\dfrac xy=\\dfrac yz$''是``$xz=y^2$''的\\blank{50}条件;\\\\\n(4) ``$|x |>| y|$''是``$x>y>0$''的\\blank{50}条件;\\\\\n(5) ``$x^2>4$''是``$x>2$'' 的\\blank{50}条件;\\\\\n(6) ``$x=-3$''是``$x^2+x-6=0$'' 的\\blank{50}条件;\\\\\n(7) ``$|x+y|<2$''是``$|x|<1$且$|y|<1$'' 的\\blank{50}条件;\\\\\n(8) ``$|x|<3$''是``$x^2<9$'' 的\\blank{50}条件;\\\\\n(9) ``$x^2+y^2>0$''是``$x\\ne 0$'' 的\\blank{50}条件;\\\\\n(10) ``$\\dfrac{x^2+x+1}{3x+2}<0$''是``$3x+2<0$'' 的\\blank{50}条件;\\\\\n(11) ``$0<x<3$''是``$|x-1|<2$'' 的\\blank{50}条件.", "content": "若$x,y,z$都是实数, 则:(填写``\\textcircled{1} 充分非必要、\\textcircled{2} 必要非充分、\\textcircled{3} 充要、\\textcircled{4} 既非充分又非必要''之一)\\\\\n(1) ``$xy=0$''是``$x=0$''的\\blank{50}条件;\\\\\n(2) ``$x\\cdot y=y\\cdot z$''是``$x=z$''的\\blank{50}条件;\\\\\n(3) ``$\\dfrac xy=\\dfrac yz$''是``$xz=y^2$''的\\blank{50}条件;\\\\\n(4) ``$|x |>| y|$''是``$x>y>0$''的\\blank{50}条件;\\\\\n(5) ``$x^2>4$''是``$x>2$'' 的\\blank{50}条件;\\\\\n(6) ``$x=-3$''是``$x^2+x-6=0$'' 的\\blank{50}条件;\\\\\n(7) ``$|x+y|<2$''是``$|x|<1$且$|y|<1$'' 的\\blank{50}条件;\\\\\n(8) ``$|x|<3$''是``$x^2<9$'' 的\\blank{50}条件;\\\\\n(9) ``$x^2+y^2>0$''是``$x\\ne 0$'' 的\\blank{50}条件;\\\\\n(10) ``$\\dfrac{x^2+x+1}{3x+2}<0$''是``$3x+2<0$'' 的\\blank{50}条件;\\\\\n(11) ``$0<x<3$''是``$|x-1|<2$'' 的\\blank{50}条件.",