1 . 已知下列四组陈述句,其中
是
的必要不充分条件的是( )
①
:集合
,
:集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915927df2f4a213184e907a96357cf89.png)
②
:集合
,
:集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a228435e01f8045dddbcdd8ee6780d.png)
③
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde9c5be7fdfd985b4656afa41c174a6.png)
④
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/153020a062779e961aa1bf8ebad1f752.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d743bda49fa8f4000d25e8f82e6a1cd2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/915927df2f4a213184e907a96357cf89.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/247ebba256412765cdf4279810f6c401.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65a228435e01f8045dddbcdd8ee6780d.png)
③
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a94b0db784fb46bcbcc76b5c8da7f66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cde9c5be7fdfd985b4656afa41c174a6.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bfdd1567e1fb23a640a39df693073fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/153020a062779e961aa1bf8ebad1f752.png)
A.① | B.② | C.③ | D.④ |
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名校
2 . 对任意实数a,b,c,下列命题为真命题的是( )
A.“![]() ![]() | B.“![]() ![]() |
C.“![]() ![]() | D.“![]() ![]() |
您最近一年使用:0次
2022-11-03更新
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1286次组卷
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6卷引用:广西钦州市2022-2023学年高一上学期期末考试数学试题
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