题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005355-95395.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005355-88568.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005356-31677.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005356-15032.png)
解析
试题分析:设棱长为1.取
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005356-71154.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005356-99922.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005357-82805.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005357-96584.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005357-82931.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005355-88568.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005356-31677.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005358-83024.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005349-80924.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005349-89979.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005343-57785.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005343-18250.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005344-68956.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005344-85255.png)
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![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005336-40669.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005336-24640.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005330-81816.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005330-49941.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005330-93245.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005330-27468.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005331-94503.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005331-49349.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005331-64257.png)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005321-27786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005321-72402.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022005322-82046.png)
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