若
是两个命题,则“
为真命题”是“
为假命题”的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a550c916c64f621010e604a30ef67566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d4eed113aa69a7d973c6410bae7ddf.png)
A.充分非必要条件 | B.必要非充分条件 | C.充要条件 | D.既非充分也非必要条件 |
更新时间:2017-02-16 09:21:40
|
相似题推荐
单选题
|
较易
(0.85)
【推荐2】在
中,角
,
,
所对应的边分别为
,
,
,则“
”是“
”的
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371840512/STEM/fb630fdda0fd4c1b96c8e2ff47a072ad.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371840512/STEM/f4e834a78d7c4c95b1b04346e178f46a.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371840512/STEM/4d264767e8c444748cb13e731c05481e.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371840512/STEM/91452baa5d9b440db5aa0ab793170312.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371840512/STEM/03a504e78c194e969c49ed07763c7fdb.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371840512/STEM/721d9c0fdea645f795f25e89a8b040eb.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371840512/STEM/51c4747f2822435a9caadc5b125fe6a7.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371840512/STEM/248484b4c3b94d8abf178f472255bf44.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371840512/STEM/b5734eed86274b668c6a8d4b6c40c5f6.png)
A.充分非必要条件 | B.充分必要条件 |
C.必要非充分条件 | D.非充分非必要条件 |
您最近一年使用:0次
单选题
|
较易
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名校
【推荐1】如果命题“¬(p或q)”为假命题,则
A.p、q均为真命题 |
B.p、q均为假命题 |
C.p、q中至少有一个为真命题 |
D.p、q中至多有一个为真命题 |
您最近一年使用:0次
单选题
|
较易
(0.85)
【推荐2】设
,
,
是非零向量 .已知命题
:若
,
,则
; 命题
:若
,
,则
.则下列命题中真命题是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c35436a86597b198e7f36ecf807e8702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/00e0bfa240a4146c3ea89d99b2a1f31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ae2afd9ffabfb484b6fe3949060814c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d553efed052e7e0777728ef622a5c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce590e7dd367445634136518979dc5b3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c416e5fcd84ae9a287348fbecb625706.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次