【单选题】若发动机活塞敲缸异响,低温声音大,高温声音小,则为( )。
【单选题】我国社会主义工业化建设,最初主要照搬的是( )。
【简答题】听下面有段材料,回答第1-2题 1. What’s wrong with the man? A. He has become seriously ill. B. His hand is bleeding. C. His head is injured. 2. What does the woman decide to do ? A. To get the man’s wallet for him....
【简答题】听下面一段对话,完成1-2小题。 1. What's wrong with the man? A. He has become seriously ill. B. His head is injured. C. His hand is bleeding. 2. What does the woman decide to do? A. To get the man's wallet for him....