题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233958-93149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233958-30479.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233959-43776.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
答案
解析
试题分析:因为若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233958-93149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233958-30479.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233959-43776.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233959-43776.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233959-20705.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233959-40086.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233958-93149.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233958-30479.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233959-43776.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233953-49645.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233953-86391.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233953-38893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233953-27186.png)
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/20191102/20191102233948-69385.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233948-22034.png)
A.充分不必要 | B.必要不充分 | C.充要 | D.既不充分也不必要 |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233939-72019.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233939-29332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233939-33256.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233939-43098.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233939-36438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233939-29332.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233940-60498.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233940-99999.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233940-60438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233939-29332.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233939-72019.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233939-36438.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233940-13725.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233930-33789.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233930-33746.png)
⑴若命题
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233931-93174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233931-36267.png)
⑵判断命题
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233931-93174.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233931-56736.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233924-45495.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102233924-97624.png)
A.充分而不必要条件 | B.必要而不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
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