高三文科数学答案.pdf

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答 案1A2D3D4C5C6A7A8A9C10C11D12B13.3,14.4,15.57,16. n+1217.( 1) 3C , ( 2) ( 3,0)18.( 1) 2 , 2 1nn na b n ( 2) 1(2 3)2 6nnT n 满 足 条 件 的 最 大 整 数 4n 【 答 案 】 ( 1) 14m ; ( 2) 有 99.9%的 的 把 握 认 为 支 持 网 络 购 物 与 年 龄 有 关 .20212223. 原 不 等 式 得 证

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