1 . 下列四个结论:
命题“
,
”的否定是“
,
”;
若
是真命题,则
可能是真命题;
“
且
”是“
”的充要条件;
,都有
.
其中正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e1c9ae241fd78126274c65e17990c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7142f4468a21b0dff082c9cdf5540a9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20466dd58e7dcdf7d4d54f97d2d8db49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a862b1cabd8c3e320cbe39aa3f25ca0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e2feeb63fddd58190481de0736252da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c650fe55b7603f106c53ca2423451c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c554e9fd580d60d9eff61b0c65199df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33b47d89dd3bb1a4b0b425020fc454f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f82e415812cca9545611c0faa0c01b1c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edb11aa108cafaa12ba5da8f395e609d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56b04d4d8d6bc32f5e8b831d101c25bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b347b66c051c15208475922f1811a1f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2ad726d5700985a308fc427ea4d82a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a29158776590d82d08a5a2a197fcc794.png)
其中正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11d71379442f28c038d367d49422cf90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/987517758fad59f6f695761deb2a5ebd.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2018-12-17更新
|
158次组卷
|
2卷引用:【校级联考】湖北省部分重点中学2019届高三上学期期中考试数学(理科)试题
2 . 下列命题正确的是
A.命题“若![]() ![]() |
B.命题“![]() ![]() ![]() |
C.“![]() ![]() |
D.命题“存在![]() ![]() ![]() ![]() |
您最近一年使用:0次
3 . 下列说法正确的是( )
A.“若![]() ![]() ![]() ![]() |
B.等比数列![]() ![]() ![]() ![]() |
C.“若![]() ![]() |
D.“若![]() ![]() |
您最近一年使用:0次
名校
4 . 下列说法正确的
A.![]() ![]() |
B.“![]() ![]() |
C.命题“![]() ![]() ![]() ![]() |
D.“若![]() ![]() ![]() ![]() |
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2017-11-12更新
|
293次组卷
|
3卷引用:湖北省重点高中联考协作体2017年秋季高三期中考试数学(文)试题
5 . 设命题
,使
是幂函数,且在
上单调递减;命题
,
,则下列命题为真的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26c789f3a4bbab386708c08415fc273a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b9a4c03c62afab5c99384bd0fca82b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ab5e0524def52baf53480b8726784ed.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/665fd98b2ad8b12144d1002c358f3834.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf8de41bd48f0c7b39075b665aacea09.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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2017-11-10更新
|
589次组卷
|
3卷引用:湖北省襄阳市四校(襄州一中、枣阳一中、宜城一中、曾都一中)2018届高三上学期期中联考数学(理)试题
6 . 已知命题
;命题
,给出下列结论:
(1)命题
是真命题;
(2)命题
是假命题;
(3)命题
是真命题;
(4)
是假命题.
其中正确的命题是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c2c39db7b46599d931ec1650dd69800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe9345ecb9870c4ec048aa4ae926ed69.png)
(1)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31351c3868449fd115650c13152be8.png)
(2)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3cd024167e8c0c14d3814fb9f4a5298a.png)
(3)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aad6752d95afd4b3e61e115023729621.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03f44748c7124df6779bef1ef5d1abd4.png)
其中正确的命题是
A.(2)(3) | B.(2)(4) | C.(3)(4) | D.(1)(2)(3) |
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7 . 下列命题的叙述:
①若![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/505f3a30d429b0c08d0d30498b1b7838.png)
;
②三角形三边的比是
,则最大内角为
;
③若
,则
;
④
是
的充分不必要条件,其中真命题的个数为
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4db2aaa0000a5061178151699eeb71e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/505f3a30d429b0c08d0d30498b1b7838.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a4843439696eb97dcc41278c219a5c0.png)
②三角形三边的比是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/70c1c9bbf990a7cda7963493976b8278.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a6416b1fd6a1afe6a7f653fa6650d36.png)
③若
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573171428671488/1573171434135552/STEM/8b261b24351c413c8c441c9a840a4154.png)
![](https://img.xkw.com/dksih/QBM/2016/11/24/1573171428671488/1573171434135552/STEM/6f72ad440d64468aad2aaea144d9cb42.png)
④
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/05edf428bec71774e47cb0843e2f101f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6be67cbce81d7e50115e040bcd3dba2.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
8 . 下列命题错误的是
A.命题“若![]() ![]() ![]() ![]() |
B.若命题![]() ![]() ![]() ![]() |
C.![]() ![]() ![]() |
D.若![]() ![]() ![]() |
您最近一年使用:0次
2016-12-03更新
|
202次组卷
|
3卷引用:2015届湖北武汉华中师大附中高三上学期期中理数学试卷
13-14高三·湖北随州·期中
9 . 下列有关命题的叙述, ①若
为真命题,则
为真命题;②“
”是“
”的充分不必要条件;③命题
,使得
,则
,使得
;④命题“若
,则
或
”的逆否命题为“若
或
,则
”.其中错误的个数为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0045a603e555d2d2a8ef634f9edf9951.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31351c3868449fd115650c13152be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b450d29b6f2de27719405c39b470a6d.png)
![](https://img.xkw.com/dksih/QBM/2014/12/2/1571909670666240/1571909676048384/STEM/4cfaf7c3ccbf4e919754d990668626bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f376dc2a5d007222ece624ec2a9be240.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02c7f5791e9aa5c387607f654c944bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c991df5549831dd87d888ca4c4200c7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4e70956de1c6f1fa3bcd520da174e78.png)
![](https://img.xkw.com/dksih/QBM/2014/12/2/1571909670666240/1571909676048384/STEM/4611163e7a43408ea66a5cc4c2ea74ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9741a2fca27f76be9834659c28fc6783.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f8e6051cf3ce8e272372cb1bc758af2c.png)
![](https://img.xkw.com/dksih/QBM/2014/12/2/1571909670666240/1571909676048384/STEM/0397267ed6534d2087c2b157c740926b.png)
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次
9-10高三·湖南岳阳·阶段练习
10 . 以下有关命题的说法错误的是
A.命题“若![]() ![]() ![]() ![]() |
B.“![]() ![]() |
C.若![]() ![]() |
D.对于命题![]() ![]() ![]() ![]() |
您最近一年使用:0次
2016-12-02更新
|
1060次组卷
|
8卷引用:2012届湖北省鄂州市第二中学高三期中考试文科数学
(已下线)2012届湖北省鄂州市第二中学高三期中考试文科数学2016届湖北省孝感高中高三9月调考文科数学试卷(已下线)湖南省岳阳市一中2010届高三第九次质检数学试题(文)(已下线)2012届宁夏银川一中高三第一次月考理科数学试卷(已下线)2011-2012学年广东省翠园中学高二上学期期中考试理科数学(已下线)2011-2012学年江西省临川十中高二下学期期中考试理科数学试卷(已下线)2013届辽宁省丹东市宽甸二中高三上学期期末考试数学试卷(已下线)2013-2014学年黑龙江省哈尔滨四中高二下学期期末考试文科数学试卷