题目
题型:填空题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092344-69954.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092344-70346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092344-94421.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092345-56647.png)
解析
试题分析:因为
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092344-69954.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092344-70346.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092344-94421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092345-56647.png)
点评:根据集合间的关系分析出集合A中的元素是做本题的关键,属于基础题型。
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092339-36584.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092339-98071.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092339-50341.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092339-36616.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092340-70909.png)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092340-39224.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092340-70909.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092330-60611.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092330-17815.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092331-36082.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092331-32604.png)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092331-45872.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092331-85604.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092331-79154.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092332-11556.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092332-23304.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092332-88517.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092332-14683.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092332-54797.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092328-24783.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092328-88417.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092329-95341.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092329-84215.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092326-78706.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092327-58208.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092327-78609.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092323-76970.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092324-35682.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092324-88533.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817092324-79373.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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