题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020810-61699.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020811-98088.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020811-44264.png)
A.![]() | B.![]() | C.![]() | D.![]() |
答案
解析
![]() |
如图,平行四边形
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020812-71147.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020813-57096.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020813-95298.png)
核心考点
试题【在平行四边形ABCD中,AC为一条对角线,若,,则等于( )A.B.C.D.】;主要考察你对平面向量的基本定理及坐标表示等知识点的理解。[详细]
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020806-37193.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020806-21006.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020807-29542.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020807-29152.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020802-17204.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020803-81210.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020803-19588.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020802-17204.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020803-26015.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020804-52800.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-98125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020756-77565.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-98125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020756-77565.png)
②若
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020756-32556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020756-32556.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020756-32556.png)
③
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
④若
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-98125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-98125.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020756-84842.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020755-31229.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020756-84842.png)
A.0 | B.1 | C.2 | D.3 |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020748-43752.png)
A.![]() | B.-![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020743-95484.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191104/20191104020743-68690.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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