第16题: [单项选择]奎尼丁的作用机理是 () A. 抑制钠内流 B. 抑制钙内流 C. 阻断钾通道,延长复极 D. 兴奋迷走神经 E. 延长动作电位时间 参考答案:A
第17题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. At a hamburger shop. B. At a parking lot. C. At a laundry. D. At a gas station. 参考答案:D 答案解析:[听力原文] M: Let me dean your windshield and check your water and you will be all set. They look so