1 . 下列命题正确的是
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
2 . 已知命题
,则
为
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930433536/STEM/e16f434437a547f1a2ec14905c065114.png)
![](https://img.xkw.com/dksih/QBM/2016/6/1/1572687924682752/1572687930433536/STEM/eec916d7c9ff4678a2279e400fb69110.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
197次组卷
|
2卷引用:2015-2016学年湖南师大附中高二上第二次段测文科数学卷1
3 . 已知命题p:
.则
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9075ae427706e17c704f8828dbb362cb.png)
A.![]() |
B.![]() |
C.![]() |
D.![]() |
您最近一年使用:0次
4 . 给出下列3个命题,其中正确的个数是
①若“命题
为真”,则“命题
为真”;
②命题“
”的否定是“
”;
③“
”是“
“的充要条件 .
①若“命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31351c3868449fd115650c13152be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0045a603e555d2d2a8ef634f9edf9951.png)
②命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73276cbad3d8b27ea2dc4de4d91b5382.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/435bed94e41f206eeaf38a662bd76766.png)
③“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8cb0c6ea23449b367dd8e96c34763b16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d1b03c5fee1eda3d772a2fd1aefcc98.png)
A.1个 | B.2个 | C.3个 | D.0个 |
您最近一年使用:0次
5 . 下列叙述中正确的是
A.若![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() |
C.命题“对任意![]() ![]() ![]() ![]() |
D.![]() ![]() ![]() ![]() ![]() ![]() |
您最近一年使用:0次
6 . 命题“
”的否定是
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572433366376448/1572433371938816/STEM/08b5d5c6d7b54ac194a46166f84e8774.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
7 . 设命题p:
,都有
,则
为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6dedfb87b8b9613a5a0cc1eb45b3ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57837277d18bf38f9af8e02c9718b68f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a037d29525d118dc083dc3e5e808ca2b.png)
A.![]() ![]() |
B.![]() ![]() |
C.![]() ![]() |
D.![]() ![]() |
您最近一年使用:0次
8 . 下列结论正确的个数是
①若
,则
;
②命题“
”的否定是“
”;
③“命题
为真”是“命题
为真”的充分不必要条件.
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f7fde71807463dbdfd8fce1655a5a9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e8a38567d97681ed9614b9bec3a9cfd.png)
②命题“
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572430625800192/1572430630821888/STEM/eb22cd5f3b204bfdb5f3a59634e947b2.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572430625800192/1572430630821888/STEM/858098859fea4db5845e61f601efb1be.png)
③“命题
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572430625800192/1572430630821888/STEM/4a4f276a778d4c9895b01226e8c11577.png)
![](https://img.xkw.com/dksih/QBM/2016/1/13/1572430625800192/1572430630821888/STEM/e6519d70aaf849019510f35c55d8313c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
9 . 已知函数
,若命题“存在
”为真,则m的取值范围是___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d08f6a2dc4b64e82da5dc98a631283b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/933a93f7f786c53d0bd50734d22d3c50.png)
您最近一年使用:0次
2016-12-04更新
|
340次组卷
|
2卷引用:2015-2016学年河南省林州一中高二上期中理科数学试卷
10 . 已知命题
使
;命题
当
时,
的最小值为4.下列命题是真命题的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f804c3bf2e4e9a4c58749929955504e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4768e26fa4883d6dbfc0daed364a2206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/948805a4913dec4a1d32961c347be4c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86f23cf4ea5e7c2397400f72745cae97.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2016-12-04更新
|
352次组卷
|
2卷引用:2015-2016学年河南省林州一中高二上期中理科数学试卷