修改三道答案
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@ -739411,7 +739411,7 @@
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"2023届高三-第二轮复习讲义-12-圆锥曲线"
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],
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"genre": "填空题",
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"ans": "$\\pm 4$",
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"ans": "$4$",
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"solution": "",
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"duration": -1,
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"usages": [],
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@ -739680,7 +739680,7 @@
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"2023届高三-第二轮复习讲义-14-等差数列和等比数列"
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],
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"genre": "解答题",
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"ans": "(1) 约$39.2$吨; (2) 在$2025$年, 该地区通过环保方式处理的垃圾量首次超过这一年产生的生活垃圾量的$50\\%$",
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"ans": "(1) 约$39.2$吨; (2) 在$2028$年, 该地区通过环保方式处理的垃圾量首次超过这一年产生的生活垃圾量的$50\\%$",
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"solution": "",
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"duration": -1,
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"usages": [],
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@ -739706,7 +739706,7 @@
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"2023届高三-第二轮复习讲义-14-等差数列和等比数列"
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],
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"genre": "填空题",
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"ans": "$-2d$",
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"ans": "$-4$",
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"solution": "",
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"duration": -1,
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"usages": [],
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