第19题: [单项选择]一辆发动机刚大修过不久的普通桑塔纳轿车出现排气管冒蓝烟现象,客户很不满意,要求修理厂返工,并作出适当的经济补偿。但修理厂认为该厂对发动机进行大修时完全按照国家标准规定的工艺执行的,发动机排气管冒蓝烟的主要原因是使用者未按走合规定执行或发动机出现过高温所致。双方争执不下。请您回答下面问题,并指出责任方。你认为以下做法正确的是:() A. 镗缸之后,磨缸之前进行激光处理 B. 磨缸之后,装配之前进行激光处理 C. 装配之前,再次测量气缸的尺寸公差 D. 无所谓,只要看清标记即可 参考答案:A
第23题: [单项选择]Questions 19 to 21 are based on the conversation you have just heard.A. They changed their ways of talking. B. They change to another topic. C. They made their way to choose the wallpaper that is favored by both. D. They just stopped quarrelling. 参考答案:C 答案解析:[解析] How did the man solve the dispute with his wife