题目
题型:不详难度:来源:
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答案
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192418-46877.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192408-33701.gif)
(1)若
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192408-88239.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192407-17037.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192408-57271.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192408-78489.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192407-80992.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192346-22678.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192347-67184.gif)
(Ⅰ)当
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192348-84007.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192346-22678.gif)
(Ⅱ)当
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192348-63974.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192348-95901.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023192348-84007.gif)
A.(0,+∞) | B.(0,2) | C.(1,+∞) | D.(0,1) |
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