题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073614-66852.png)
A.充分必要条件 | B.充分而不必要条件 |
C.必要而不充分条件 | D.既不充分又不必要条件 |
答案
解析
试题分析:①当“
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073614-66852.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073614-43642.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073614-72282.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073615-33623.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073615-57407.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073615-79275.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073614-66852.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073614-66852.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073603-18382.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073603-22893.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073603-89453.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
②在
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073543-42903.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073544-32705.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073544-88227.png)
③
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073544-23028.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073544-26460.png)
④“am2<bm2 ”是“a<b”的充分必要条件.
以上说法中,判断正确的有___________.
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073533-68974.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073533-78739.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073534-37792.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073534-23623.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073534-10976.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073514-62732.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073514-14211.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102073515-89125.png)
A.0 | B.1 | C.2 | D.4 |
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