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高中数学选择性必修 第一册（264题）
圆
A.\((x-1{)}^{2}+(y-1{)}^{2}=4\)
B.\((x+1{)}^{2}+(y+1{)}^{2}=4\)
C.\((x-2{)}^{2}+(y-2{)}^{2}=4\)
D.\((x+2{)}^{2}+(y+2{)}^{2}=4\)
知识点：第二章 直线和圆的方程
参考答案：A
“微信扫一扫”进入题库练习及模拟考试
圆
A.\((x-1{)}^{2}+(y-1{)}^{2}=4\)
B.\((x+1{)}^{2}+(y+1{)}^{2}=4\)
C.\((x-2{)}^{2}+(y-2{)}^{2}=4\)
D.\((x+2{)}^{2}+(y+2{)}^{2}=4\)
参考答案：A