第15题: [单项选择]Turbocharged four-stroke/cycle diesel engines utilize valve overlap for(). A. improving cylinder scavenging B. preheating the combustion chamber C. reducing air charge density D. preventing valve wear 参考答案:A
第25题: [单项选择]What does the man mean A. He wants the woman to buy some coffee. B. He’s hoping to have a break for a coffee. C. He’s just making some coffee for the woman. 参考答案:B 答案解析:[听力原文] F: How about stopping here for a coffee M: Well, that’s just what I was thinking.
第27题: [多项选择]关于从业人员做到诚实守信,不完整或不准确的理解是( )。 A. 诚实守信的前提是看对方是不是诚实守信 B. 不做对不起朋友的事情,是诚实守信的根本体现 C. 不管许诺什么,只要兑现了诺言就是诚实守信 D. 获得手段是否正当是检验一个人是否诚实守信的标准之一 参考答案:A,B,C,D