题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042520-60108.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042520-69193.png)
答案
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042520-50685.png)
解析
试题分析:圆的圆心为
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042521-82285.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042521-55925.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042521-23375.png)
因为
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042521-74753.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042520-50685.png)
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042515-87353.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042515-48478.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042515-63288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042515-96017.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042516-21462.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042515-63288.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042515-48478.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042516-97069.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042506-40863.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042506-10089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042506-67423.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042507-83113.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042507-19487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042507-64523.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042507-20748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042507-65070.png)
(I)写出直线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042506-10089.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042507-20748.png)
(II)若曲线
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042507-20748.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042507-17938.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042508-87946.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042459-61340.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042459-48090.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042454-40888.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042455-23437.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042455-16848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191108/20191108042449-99093.png)
A.一条直线 | B.两条直线 | C.一条射线 | D.两条射线 |
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