题目

A.His friend B.His fatherC.His mother D.His parents 答案：【答案】A【解析】【原文】W: What's your plan for the summer holidays, Mike?M: I will go to Lijiang.W: Oh, that's a wonderful place for travelling. Who will you go there with, your father or your mother?M: Neither of them. I'll go with my friend.Q: Who will Mike go to Lijiang with? (A)曲线在点处的切线方程为（　　　）