题目
题型:不详难度:来源:
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答案
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024100023-78608.png)
解析
试题分析:由抛物线方程
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024100021-73585.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024100025-28227.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024100008-48463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024100008-88884.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024100003-52103.png)
A.![]() | B.![]() | C.![]() | D.12 |
![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095955-52864.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191024/20191024095955-52864.png)
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