题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014907-11469.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014907-22392.gif)
(I)若点
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014907-29293.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014907-44964.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014908-19418.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014907-29293.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014907-29293.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014908-77681.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014908-16932.gif)
(Ⅱ)线段
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014908-94172.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014909-57490.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014909-57490.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014907-29293.gif)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014909-32913.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014909-33975.gif)
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014907-29293.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014909-77214.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014907-29293.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014908-77681.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014908-16932.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014909-32913.gif)
(Ⅱ)设线段
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014908-94172.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014909-57490.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014909-87021.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014909-33975.gif)
核心考点
试题【(本小题满分12分)如图在棱长为1正方体中,以正方体的三条棱所在直线为轴建立空间直角坐标系,(I)若点在线段上,且满足,试写出点的坐标并写出关于平面的对称点的坐】;主要考察你对线线角等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014902-10658.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014902-80974.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014903-14371.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014859-43185.gif)
棱CC1的中点,则异面直线AC和EF所成的角为
A.30° | B.45° |
C.60° | D.90° |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014900-20414.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014847-43456.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014847-39763.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014848-84306.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014848-49201.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014848-46229.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014848-36144.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014848-19150.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014849-27338.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014842-55267.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014843-64002.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014843-73868.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014839-38571.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191022/20191022014839-12133.gif)
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