题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111917-46294.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111918-87823.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111918-12194.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111918-37542.gif)
答案
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111914-35629.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111914-18025.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111914-35629.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111914-18025.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111914-65730.gif)
A.{![]() ![]() ![]() | B.{![]() ![]() | C.{![]() ![]() | D.{![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111910-27497.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111910-98202.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111910-71891.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111906-48723.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111901-70351.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111901-87298.gif)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111902-78243.gif)
(2)若集合
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111902-64278.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111902-89480.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111902-40840.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111903-90069.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111859-10374.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111859-39173.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817111859-62237.gif)
A.![]() | B.![]() | C.M | D.N |
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