收录高三寒假作业13新题

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wangweiye7840 2024-01-25 09:59:18 +08:00
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20240124-214513
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20240125-095857
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"20220720\t王伟叶"
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"023715": {
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"content": "若将 $1$、$2$、$3$ 填人 $3 \\times 3$ 的方格中, 要求每行、每列都没有重复数字, 如图是其中一种填法, 则不同的填写方法共有\\blank{50}种.\n\\begin{center}\n\\begin{tabular}{|c|c|c|}\n\\hline 1 & 2 & 3 \\\\\n\\hline 3 & 1 & 2 \\\\\n\\hline 2 & 3 & 1 \\\\\n\\hline\n\\end{tabular}\n\\end{center}",
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"023716": {
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"content": "学校组织春游活动,每个学生可以选择去四个地方:崇明、朱家角、南汇和嘉定, 有四位同学恰好分别来自这四个地方, 若他们不去家乡, 且分别去了不同地方,则四位同学去向的所有可能结果数为\\blank{50}.",
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"023717": {
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"content": "甲、乙、丙三个人玩``剪刀、石头、布''游戏,一次游戏中可以出现的不同结果数为\\blank{50}种.",
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"023718": {
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"content": "我们把各位数字之和为 6 的四位数称为``六合数''(如 2013), 则``六合数''中首位为 2 的六合数共有\\blank{50}个.",
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"023719": {
"id": "023719",
"content": "从$-1,0,1,2$ 这四个数中选三个不同的数作为函数 $f(x)=a x^2+b x+c$ 的系数, 则可组成个不同的二次函数,其中偶函数有\\blank{50}个(用数字作答).",
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"023720": {
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"content": "如图所示,用 $4$ 种不同的颜色涂入图中的矩形 $A$、$B$、$C$、$D$ 中,要求相邻的矩形涂色不同,则不同的涂法有\\blank{50}种.\n\\begin{center}\n\\begin{tikzpicture}[>=latex]\n\\draw (0,0) rectangle (1.5,2);\n\\draw (0,{2/3}) --++ (1.5,0);\n\\draw (0,{4/3}) --++ (1.5,0);\n\\draw (0.75,{1/3}) node {D};\n\\draw (0.75,1) node {C};\n\\draw (0.375,{5/3}) node {A} ({9/8},{5/3}) node {B};\n\\draw (0.75,{4/3}) -- (0.75,2);\n\\end{tikzpicture}\n\\end{center}",
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"023721": {
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"content": "从正方体六个面的对角线中,任取两条作为一对,其中所成角为 $60^{\\circ}$ 的共有\\blank{50}对.",
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"023722": {
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"content": "定义数列 $\\{a_n\\}$ 如下: 存在 $k \\in \\mathbf{N}$ 且 $k \\geq 1$, 满足 $a_k<a_{k+1}$, 且存在 $s \\in \\mathbf{N}$ 且 $s \\geq 1$, 满足 $a_s>a_{s+1}$,已知数列 $\\{a_n\\}$ 共 $4$ 项, 若 $a_i \\in\\{t, x, y, z\\}$($i=1$、$2$、$3$、$4$) 且 $t<x<y<z$, 则数列 $\\{a_n\\}$ 共有\\blank{50}个.",
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"030001": {
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"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.",