第29题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. She is a chemist and has to do lots of experiments. B. He must be extremely careful. C. He is very careless during the experiment. D. She doesn’t think the man is right. 参考答案:B 答案解析:[听力原文] M: I think I’ve got this experiment set up right now. W: You only think it’s right In