【判断题】配合制的选用与 零件的 使用要求无关 。
【简答题】如图电路,电路中的开关闭合很久,t=0时断开开关。求iL(0+)和iL(0-)。
【单选题】What are the guest speakers' jobs?
C.
An envrionmentalist and an ubran planner.
【单选题】What are the guest speakers' jobs?
C.
An environmentalist and an urban planner.
【简答题】听下面一段对话,回答第1至3题. 1. What are the speakers talking about? A. A high school. B. A French teacher. C. A teaching post. 2. What can we know about the man? A. He can speak French. B. He can speak Chinese. ...