题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124456-22711.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124456-95648.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124456-95338.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124457-86187.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124457-59808.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124457-69613.jpg)
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124450-96684.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124451-32973.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124451-50810.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124451-80181.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124451-13354.gif)
条件
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124445-47192.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124445-65898.png)
正确的是( )
A.若m∥![]() ![]() |
B.若m![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
C.若![]() ![]() ![]() ![]() ![]() ![]() ![]() |
D.若![]() ![]() ![]() ![]() ![]() ![]() ![]() ![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124430-56848.gif)
①两个相互垂直的平面,一个平面内的任意一直线必垂直于另一平面内的无数条直线.
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124430-23021.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124431-10214.gif)
③若sin(
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124431-43324.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124431-82832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124432-62502.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124432-37991.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124431-43324.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124431-82832.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124432-27444.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124431-43324.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124431-82832.gif)
④如图,已知正方体ABCD- A1B1C1D1,P为底面ABCD内一动点,
P到平面AA1D1D的距离与到直线CC1的距离相等,则P点的轨迹是抛物线的一部分.
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124406-56635.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124407-94757.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124407-13921.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124407-75722.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124407-94757.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124408-85277.png)
若
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124408-54551.png)
A.![]() | B.![]() | C.![]() | D.![]() |
A
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124354-97597.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124354-97597.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124355-81646.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191102/20191102124355-81646.png)
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