第20题: [单项选择]What leads the policeman to believe that Mr. Simpson didn’t drink alcohol before driving A. A breathalyzer test. B. A blood test. C. The certainty of his claim. D. No smell of wine in his breath. 参考答案:D 答案解析:[解析] 对话中男士坚称他整晚滴酒未沾,警察表示同意,并补充道,即使司机驾驶前只是小饮,他也会因口中的酒气而穿帮,可见,男士口中并无酒气,这使警察排除男士酒后驾驶的可能性,故D正确。 [点
第21题:[单选题]酒精 A. 前C/C区 B. X区 C. S区 D. P区 E. 前S区 以上HBV的开放读码区有何功能? 参考答案:A
第23题: [单项选择]The victims of drunken driving in America over the past decade ()an incredible 250, 000, with three killed every hour of every day on average. A. take up B. add up to C. count for D. turn out to 参考答案:B