第29题: [单项选择]Questions 11 to 18 are based on the conversation you have just heard. A. He has some money to buy a new car. B. He fails in borrowing enough money from the woman. C. He will spend much money on his house. D. He wants to buy a new house and a new cat’. 参考答案:B 答案解析:[听力原文] M: I wish to buy a new car, but I spent too much on my house last year. W: New cars are
第30题: [单项选择]下列关于锅炉受热面的结构布置说法不正确的是( )。 A. 锅炉的辐射受热面主要指布置在炉膛内的水冷壁管 B. 水冷壁由水循环回路的上升管组成 C. 水冷壁布置于炉膛的中心 D. 炉膛的形状和容积大小对锅炉的安全、经济运行有很大的影响 参考答案:C