题目

交际配对A. No, they aren’t.B. He feels angry.C. Because I like the weather.D. I am a teacher.E. Yes, they did.（____）1. Why do you like spring?（____）2. Are these tomatoes? （____）3. How does John feel? （____）4. What do you do?（____）5. Did they have a good trip? 答案：【答案】1.C 2.A 3.B 4.D 5.E 【解析】略已知圆C的半径为,圆心在直线上,且被直线截得的弦长为,求圆C的方程