【单选题】a. Should I take the tie off? b. Should I take the time off?
A.
Yes,it doesn’t match your shirt.
B.
Yes, you need a vocation.
【简答题】A. Remember, whatever you do, don’t lift heavy objects B. What else should I pay attention to C. Take the medicine three times a day D. Do you mean three pills a time E. Should I take it before or aft...
【单选题】Could you tell me _______ to the Science Museum? [ ]
A.
which bus shall I take
B.
I should take which bus
D.
which bus I should take
【简答题】直齿圆柱齿轮正确啮合的条件是()和();连续传动的条件是()。
【简答题】请阐述石油定义? 2.石油中烃类包括哪些物质? 3.常温常压下烃类的状态? 1. 请阐述石油定义?