第8题: [单项选择]维生素A缺乏会导致() A. 脚气病 B. 夜盲症 C. 软骨病 D. 佝偻病 E. 坏血病 参考答案:B
第9题: [单项选择]Who are talking to each other A. A teacher and a student. B. A mother and a son. C. A manager and a worker. 参考答案:B 答案解析:[听力原文] F: Tongtong, have you finished your homework We are going to meet your father at the stat
第27题: [单项选择]Speaker A: I'm really grateful(感谢的) to you. Speaker B:() A. Not at all. B. Think nothing of it. C. Sure thing. D. It' s been a pleasur 参考答案:A