命题“
”的否定为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/674e743575a1be072d7a44011be6af7e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
更新时间:2022-01-24 21:17:18
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【知识点】 全称命题的否定及其真假判断解读
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单选题
|
容易
(0.94)
【推荐1】已知定义在R上的函数
周期为T(常数),则命题“
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20c941dbe36a4dceb3047534affe2d97.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
单选题
|
容易
(0.94)
【推荐2】设
,集合
是奇数集,集合
是偶数集.若命题
,
,则( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ffcfabd204011274ad9908d528944107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7467b38962b39334863cb401ce899a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ebcc45c0024b9f06bc4bfc0c9505fd0.png)
A.![]() ![]() ![]() ![]() |
B.![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() |
您最近一年使用:0次