题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115515-51602.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115516-15648.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115516-72806.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115516-72432.gif)
A.存在![]() ![]() | B.对任意![]() ![]() |
C.存在![]() ![]() | D.对任意![]() ![]() |
答案
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115455-88033.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115455-94526.gif)
①若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115455-97052.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115455-24597.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115456-57107.gif)
③若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115456-59840.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115456-26539.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115456-80179.gif)
其中真命题的个数
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115457-99905.gif)
A.1个 | B.2个 | C.3个 | D.4个 |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115436-33020.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115436-20058.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115436-20058.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115437-35229.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115437-35229.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115436-33020.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115437-74133.gif)
A.逆否命题 | B.否命题 | C.逆命题 | D.原命题 |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115424-70679.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115424-75916.gif)
①若l垂直于
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115424-70679.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115425-30820.gif)
②
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115425-33337.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115425-20900.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115425-35372.gif)
③若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115426-68774.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115426-97812.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115425-35372.gif)
④若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115425-33337.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115424-70679.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115424-75916.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115426-41195.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115426-29859.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115427-64892.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115427-35996.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115415-69257.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115416-53442.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115416-75538.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115416-40471.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115416-81815.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115415-69257.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115416-75538.gif)
A.充分不必要条件 | B.必要不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115343-35146.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115343-85654.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115343-53189.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115343-92198.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115343-39337.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115344-31279.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115344-16985.gif)
C.
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115344-66945.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115344-60354.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115345-88960.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115345-31252.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102115345-89055.gif)
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