题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043326-62499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043326-34455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043327-68529.png)
_______________
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043327-45693.png)
解析
试题分析:根据题意,由于正方体
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043326-62499.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043326-34455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043327-68529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043326-34455.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043327-68529.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043327-45693.png)
点评:主要是考查了异面直线的所成的角的求解,属于基础题。
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043319-91790.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043319-56178.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043319-22200.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043320-56163.png)
(1) 求证:AB⊥平面ADC;
(2) 求三棱锥
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043319-91790.png)
(3) 求二面角
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043320-56065.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043313-61207.png)
A.若![]() ![]() |
B.若![]() |
C.若![]() |
D.若![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043303-98216.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043303-86714.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043304-14463.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043304-16152.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043304-36383.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043304-27456.jpg)
A.![]() | B.![]() |
C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-65717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-19493.png)
①
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-65717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-65717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-71187.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
②
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-19493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-19493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043259-92867.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
③
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043259-40234.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-19493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-65717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-65717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-19493.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-65717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
④
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-65717.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-71187.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-76981.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043257-87321.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043258-65717.png)
其中正确的有( )
A.1个 | B.2个 | C.3个 | D.4个 |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043250-65657.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043250-71796.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043250-57075.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043250-83542.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043251-29204.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043251-30561.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043251-57178.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043251-61698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043251-60460.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043252-73774.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043252-47754.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043252-57183.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043252-89876.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043253-87105.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022043253-12102.png)
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