修改13384,13390题面
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@ -1,6 +1,6 @@
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import os,re,json
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import os,re,json
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"""这里编辑题号(列表)后将在vscode中打开窗口, 编辑后保存关闭"""
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"""这里编辑题号(列表)后将在vscode中打开窗口, 编辑后保存关闭"""
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problems = "15300:15302"
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problems = "13383,13390"
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editor = "王伟叶"
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editor = "王伟叶"
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def generate_number_set(string,dict):
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def generate_number_set(string,dict):
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@ -352502,7 +352502,7 @@
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},
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},
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"013383": {
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"013383": {
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"id": "013383",
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"id": "013383",
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"content": "已知甲、乙两位射手, 甲击中目标的概率为$0.7$, 乙击中目标的概率为$0.6$, 如果甲乙两仁射手的射击相互独立, 那么甲乙两射手同时瞄准一个目标射击, 目标被射中的概率为\\blank{50}.",
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"content": "已知甲、乙两位射手, 甲击中目标的概率为$0.7$, 乙击中目标的概率为$0.6$, 如果甲乙两位射手的射击相互独立, 那么甲乙两射手同时瞄准一个目标射击, 目标被射中的概率为\\blank{50}.",
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"objs": [],
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"objs": [],
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"tags": [
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"tags": [
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"第八单元"
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"第八单元"
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@ -352514,7 +352514,8 @@
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"usages": [],
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"usages": [],
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"origin": "2022版双基百分百",
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"origin": "2022版双基百分百",
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"edit": [
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"edit": [
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"20230123\t王伟叶"
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"20230123\t王伟叶",
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"20230513\t王伟叶"
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],
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],
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"same": [],
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"same": [],
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"related": [],
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"related": [],
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@ -352656,7 +352657,7 @@
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},
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},
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"013390": {
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"013390": {
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"id": "013390",
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"id": "013390",
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"content": "某蔬菜中转厂的每日进货的蔬菜量最多不超过 20 吨, 由于蔬菜采购, 运输, 管理等因素, 蔬菜每日浪费率$p$与日进货量$x$(吨) 之间近似地满足关系式$p=\\begin{cases}\\dfrac{2}{15-x}, & 1 \\leq x \\leq 9, \\\\ \\dfrac{x^2+60}{540},& 10 \\leq x \\leq 20, \\end{cases}x \\in \\mathbf{N}$(日浪费率$=\\dfrac{\\text {日浪费量}}{\\text {日进货量}} \\times 100 \\%$), 已知售出一吨蔬菜可贏利$2$千元, 而浪费一吨蔬菜则亏损$1$千元(蔬菜中转厂的日利润$y=$日售出贏利额$-$日浪费亏损额).\\\\\n(1) 将该蔬果中转厂的日利润$y$(千元) 表示成日进货量$x$(吨)的函数;\\\\\n(2) 当该蔬菜中转厂的日进货量为多少吨时, 日利润最大? 最大日利润是几千元?",
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"content": "某蔬菜中转厂的每日进货的蔬菜量最多不超过 20 吨, 由于蔬菜采购, 运输, 管理等因素, 蔬菜每日浪费率$p$与日进货量$x$(吨) 之间近似地满足关系式$p=\\begin{cases}\\dfrac{2}{15-x}, & 1 \\leq x \\leq 9, \\\\ \\dfrac{x^2+60}{540},& 10 \\leq x \\leq 20, \\end{cases}x \\in \\mathbf{N}$(日浪费率$=\\dfrac{\\text {日浪费量}}{\\text {日进货量}} \\times 100 \\%$), 已知售出一吨蔬菜可赢利$2$千元, 而浪费一吨蔬菜则亏损$1$千元(蔬菜中转厂的日利润$y=$日售出赢利额$-$日浪费亏损额).\\\\\n(1) 将该蔬果中转厂的日利润$y$(千元) 表示成日进货量$x$(吨)的函数;\\\\\n(2) 当该蔬菜中转厂的日进货量为多少吨时, 日利润最大? 最大日利润是几千元?",
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"objs": [],
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"objs": [],
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"tags": [
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"tags": [
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"第二单元"
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"第二单元"
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@ -352668,7 +352669,8 @@
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"usages": [],
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"usages": [],
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"origin": "2022版双基百分百",
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"origin": "2022版双基百分百",
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"edit": [
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"edit": [
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"20230123\t王伟叶"
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"20230123\t王伟叶",
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"20230513\t王伟叶"
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],
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],
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"same": [],
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"same": [],
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"related": [],
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"related": [],
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