第25题: [单项选择]Questions 19 to 22 are based on the conversation you have just heard. A. They are professional story-tellers. B. They are the parents of young children. C. The stories will help them improve their vocabulary. D. The stories are required for a course. 参考答案:D 答案解析:[听力原文]
Why will the speakers be reading children’s stories
第30题: [单项选择]施工生产会受到不可避免的偶然性因素的影响,下列属于偶然性因素的是( )。 A. 生产人员由于疏忽未按规程操作 B. 使用了与设计要求不同的其他规格的材料 C. 因施工机械正常磨损而带来产品质量差异 D. 在突然遇到剧烈天气变化的情况下将剩下的工作继续完成而带来的质量差异 参考答案:C