题目
题型:单选题难度:简单来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094253-28845.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094253-40227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094253-65606.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094253-57749.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094254-46677.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094254-12362.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094255-53926.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094249-19500.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094249-77023.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094249-94426.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094245-86952.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094245-45093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094246-13828.png)
的定义域为
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094246-66784.png)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094245-45093.png)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094246-33544.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094246-66494.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094243-56020.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094243-35308.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094243-91072.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094243-88357.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094243-22219.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094244-41818.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094244-58397.png)
已知集合
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094238-34623.png)
(Ⅰ)当
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094238-11625.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094238-85655.png)
(Ⅱ)若
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094239-31027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094238-11625.png)
已知集合
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094233-93162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094233-69385.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190817/20190817094234-17277.png)
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