12-13高三·吉林白山·阶段练习
名校
1 . 已知:命题
:“
是
的充分必要条件”;
命题
:“
”.则下列命题正确的是( )
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命题
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a23d65d2559db7e7ee82a1b02d11a721.png)
A.命题“![]() ![]() | B.命题“(![]() ![]() |
C.命题“![]() ![]() | D.命题“(![]() ![]() |
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2016-12-02更新
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4卷引用:第八届高二试题(A卷)-“枫叶新希望杯”全国数学大赛真题解析(高中版)