10-11高三上·北京·期中
1 . 给出下列命题 :①
;②
; ③
;
④“
”的充要条件是“
,或
”,其中正确命题的个数是 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ab0249f1b565741aecbaca3ebc55c2a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a8991d093692a0183365b460beb0235.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6da75568999ee27846deae9e919a543.png)
④“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44d54e72f2a8f5bf4a12f3328503afb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e30c903d8f8a05332af0b19e7e40df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31be670d32e753012125c503f2f3be56.png)
A.0 | B.1 | C.2 | D.3 |
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2012-09-11更新
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1204次组卷
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7卷引用:2011届北京市五中高三上学期期中考试数学理卷
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11-12高二下·四川成都·期中
名校
2 . 下列命题中真命题为( )
A.![]() ![]() | B.![]() ![]() |
C.![]() | D.![]() ![]() |
您最近一年使用:0次
2011·安徽安庆·一模
3 . 下列命题中是假命题的是
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
10-11高二上·河南·期中
4 . 下列四个命题中,
①
,![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/97d8062a833746439399eedb2d9b36b7.png?resizew=55)
②![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/604022693ee24c14a097d6aabc86c3db.png?resizew=137)
③
,使![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/4dd52f0284f844959a979f1ecb4175fb.png?resizew=99)
④
,使![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/e523e3cd9a0945c592664c874f0dbca3.png?resizew=187)
真命题的个数是( )
①
![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/333668ce150a489784b74364b9229522.png?resizew=51)
![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/97d8062a833746439399eedb2d9b36b7.png?resizew=55)
②
![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/604022693ee24c14a097d6aabc86c3db.png?resizew=137)
③
![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/ae7bfb21f123452b99885ba7e4d5f9e8.png?resizew=104)
![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/4dd52f0284f844959a979f1ecb4175fb.png?resizew=99)
④
![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/5fc7224caa1d46c59d8938d8fa26830c.png?resizew=109)
![](https://img.xkw.com/dksih/QBM/2010/11/10/1569895172710400/1569895177707520/STEM/e523e3cd9a0945c592664c874f0dbca3.png?resizew=187)
真命题的个数是( )
A.1 | B.2 | C.3 | D.4 |
您最近一年使用:0次