题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034719-51795.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034719-32138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034719-78124.png)
A.90° | B.30° | C.45° | D.60° |
答案
解析
试题分析:显然,
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034720-77093.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034720-18532.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034720-55236.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034720-54168.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034719-32138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034719-78124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034720-63854.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034721-83869.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034719-32138.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034719-78124.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034713-49902.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034714-14272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034714-79863.png)
①
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034714-39162.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034714-14272.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034714-83027.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034714-44585.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034715-58184.png)
④
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034714-44585.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034715-22910.png)
A.① | B.② | C.③ | D.④ |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034703-80127.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034703-98593.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034703-78240.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034704-73650.jpg)
(1)异面直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034704-22911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034704-71104.png)
(2)直线
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034704-22911.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034704-73530.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034654-85518.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034654-97773.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034654-30616.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034654-67241.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034654-85518.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034655-39491.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034655-35539.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034655-25793.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034655-59263.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034656-49741.jpg)
(1)求证:平面
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034656-99804.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034656-87332.png)
(2)求
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034656-82635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034656-87332.png)
①垂直于同一条直线的两条直线互相平行 ②垂直于同一个平面的两条直线互相平行
③垂直于同一条直线的两个平面互相平行 ④垂直于同一个平面的两个平面互相平行
则正确的结论是 ( )
A.①② | B.②③ | C.③④ | D.①④ |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034636-60427.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034636-46084.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034637-21182.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022034637-38265.png)
A.若![]() ![]() ![]() | B.若![]() ![]() ![]() |
C.若![]() ![]() ![]() | D.若![]() ![]() ![]() |
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