第16题: [单项选择]What does the woman suggest they do A. She didn’t like the books the man bought. B. There wasn’t a large selection at the bookstore. C. The man bought a lot of books. D. She wanted to see what the man bought. 参考答案:C 答案解析:[听力原文] M: I bought a few books at the new bookstore. Would you like to have a look at them W:
第19题: [单项选择]克拉维酸与阿莫西林配伍应用主要是因为() A. 抑制β-内酰胺酶 B. 延缓阿莫西林经肾小管的分泌 C. 提高阿莫西林的生物利用度 D. 减少阿莫西林的不良反应 E. 减少阿莫西林的抗菌谱 参考答案:A 答案解析:克拉维酸为β-内酰胺酶抑制剂,常与多种β-内酰胺类抗生素合用以增强抗菌作用,如分别与阿莫西林和替卡西林配伍组成复方制剂阿莫西林克拉维酸钾,所以答案为A。