题目
题型:单选题难度:一般来源:不详
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050536-15311.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050536-12230.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050536-34314.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050536-15311.gif)
A.(1,0) | B.(0,1) | C.(-1,0) | D.(0,-1) |
答案
解析
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050532-43028.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050532-36526.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050532-19604.gif)
A.![]() | B.![]() | C.![]() | D.![]() |
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050528-27969.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050528-73216.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050529-18584.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050529-53246.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050529-87848.gif)
A.![]() | B.![]() ![]() | C.![]() | D.![]() |
已知
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050526-63211.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050526-88255.gif)
(1)求
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050526-64392.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050526-60565.gif)
(2)若
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050526-60565.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050527-25171.gif)
(3)若
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050526-60565.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050527-25171.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050521-85914.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050521-43584.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050521-65776.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050521-89844.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050523-40520.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050523-49685.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050523-42770.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050523-26765.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050524-23514.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050524-80067.png)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050518-29405.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050518-58236.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050519-92869.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050519-52797.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050519-29699.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050519-89094.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050519-37263.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050520-15994.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050519-37263.gif)
![](http://img.shitiku.com.cn/uploads/allimg/20190821/20190821050520-98504.gif)
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