题目
题型:不详难度:来源:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023733-68364.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023733-40198.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023733-78579.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023734-31565.png)
答案
解析
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023734-81124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023734-37427.png)
当直线
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023734-81124.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023734-88894.png)
图象如图所示:
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023735-74819.png)
故选
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023735-34132.png)
【考点】圆的标准方程;数形结合.
核心考点
举一反三
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023726-12384.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023726-52454.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023726-96013.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023726-96013.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023726-58736.png)
A.![]() | B.![]() | C.![]() | D.2 |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023718-21330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023718-85848.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023718-48786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023718-68071.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023718-35866.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023718-48786.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023718-21487.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023718-21330.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023719-52358.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023719-39830.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023719-81519.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023719-34698.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023719-83965.png)
A.5 | B.6 | C.10 | D.12 |
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023711-68635.jpg)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023704-62236.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023705-10203.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023704-62236.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023705-72498.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023705-55513.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023705-34691.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023704-62236.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023705-88923.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023706-88592.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023706-87023.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023704-62236.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023706-10978.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023658-45992.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023658-37659.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023658-63752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023658-37659.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023658-20867.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023659-46447.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023659-16806.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023658-63752.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023658-37659.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023659-88950.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023659-76415.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023659-79866.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023700-22634.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023700-58951.png)
![](http://img.shitiku.com.cn/uploads/allimg/20191023/20191023023700-85906.png)
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