题目
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已知平面
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A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
核心考点
举一反三
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![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205353-11596.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205353-78344.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205352-91779.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205353-11596.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205353-78344.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205349-19742.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205349-57800.gif)
A.2 B.
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205349-39956.gif)
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![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022205349-75516.gif)
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