第6题: [单项选择]久用具有成瘾性的镇咳药是 A. 喷托维林 B. 可待因 C. 右美沙芬 D. 苯佐那酯 E. 吗啡 参考答案:B
第7题: [单项选择]Who gave a talk at the meeting A. A famous writer. B. A famous scientist. C. A famous doctor. 参考答案:B 答案解析:[听力原文] W: Did you go to the meeting yesterday M: Yes, I did. A famous scientist gave a talk a