1 . 已知命题
,
,则命题
的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a4504e8dcecc47c4a664762329c86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0932472502c34a91a276d20f96279e2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2 . 设命题
,
,则
为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3a4504e8dcecc47c4a664762329c86e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4123b4b9e76a410c64a08c0a8c134664.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
3 . 命题“
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1281f7b62b2717c65b5b6e0c279d3.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
4 . 命题“
,
”的否定为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16219a8b6ef6b6bc0279fc6a754f281c.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
5 . 设命题
,则
的否定为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5f4fa470e2baa85b1c530196b6acb28.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
6 . 命题“
,
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6422b9c2e93a91fe9e39ce4d9dabb0fc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fd8d40517cfbc2ed3de074423d643c2.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
7 . 命题“
,
”的否定为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e81b4aac721bcd4a49593b48a28a8f1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cd455b64ee12a8cd1ef18ea4011ad91.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
8 . 命题“
”的否定为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1983aace2a64f45dd9c5306bcdf82582.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
9 . 命题“
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7834030ae4b590d806f739ab3b9d5f46.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
10 . 命题“
,都有
”的否定为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad5fe274cfc8da2dacfb65801f344ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0e0e7fa124cefbde99ed5c49db6cd9e.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次