【单选题】Two TV cameras ______ eyes of a mechanical man.
【判断题】由于盘形凸轮制造方便,所以最适用于较大行程的传动
【单选题】如果发现内存条金手指变黑,可以用________清洁。
【单选题】The dining rooms in all big hotels ______.
A.
serve their guests free of charge
B.
also serve the people who don't live in the hotel free of charge
C.
check the guests' registration card carefully
D.
are easily cheated by people
【判断题】由于盘形凸轮制造方便,所以最适用于较大行程的传动。
【单选题】参考文献为学位论文时,标识代码应使用( )。
【单选题】—Does Li Ping serve in the army? —No, but he ________ in the army for five years.
【单选题】如果发现内存条的金手指变黑,可以使用________清洁。
【单选题】He asked me()English culture.
【单选题】如果发现内存条的金手指变黑,可以使用 ________ 清洁。