题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043132-74913.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-13525.png)
A.若![]() ![]() ![]() ![]() ![]() ![]() |
B.若![]() ![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() |
答案
解析
试题分析:A,B选项根据平行的传递性,能够知道是对的;
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-12547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-15849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-55009.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043134-14103.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-15849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-12547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-55009.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-12547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-15849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-55009.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-15849.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-12547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-55009.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-12547.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043133-55009.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043127-10662.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043127-69092.png)
A.若![]() ![]() | B.若![]() ![]() |
C.若![]() ![]() | D.若![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043121-47183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043121-82769.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043122-89934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043122-68248.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043121-82769.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043122-38537.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043122-68248.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043122-89934.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043122-57500.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043122-74197.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043123-51313.png)
A.![]() ![]() | B.![]() ![]() | C.![]() ![]() | D.![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043103-15113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043103-21571.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043104-28724.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043104-83677.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043104-55595.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043104-22865.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043104-63917.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043104-72113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043104-67497.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043105-98287.png)
(1)证明:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043105-87216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043105-45451.png)
(2)求直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043105-43987.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043105-46513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043105-44641.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043044-87413.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043044-26111.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043044-53429.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043044-73291.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043044-51938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043045-68315.jpg)
(1)求侧棱
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043045-17613.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043045-39264.png)
(2)已知点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043045-76774.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043046-17120.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043045-17613.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043046-16323.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043046-81421.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043046-16323.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043036-38227.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043036-96163.png)
①若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043036-69177.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043036-21239.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043037-13079.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043037-43190.png)
③若
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043037-24696.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043037-80459.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043037-23464.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043038-96507.png)
其中所有正确命题的序号是( )
A.①② | B.②③ | C.①③ | D.①④ |
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