第6题: [单项选择]Questions 11 to 18 are based on the passage you have just heard. A. There are two buses every day. B. The train is cheaper than the bus. C. The bus is cheaper than the train. D. The train is faster than the bus. 参考答案:C 答案解析:[听力原文] W: Can you tell me the least expensive way to get to New York M: If you go by bus, it’
第7题: [单项选择]溶液的折光率可间接反映溶液的() A. 组分 B. 可溶性固形物的含量 C. 酸度 D. 黏度 参考答案:B
第8题: [单项选择]有染色质缺失的染色体是指()。 A. 缺失 B. 断片 C. 断裂 D. 裂隙 E. 小缺失 参考答案:A