单项选择题
A. Hold No.2. B. No, on the bridge. C. Yes, in the captain’s cabin. D. Sorry, I don’t know.
The safe working load of the derrick is （）.A.5 tonsB.5 ...
单项选择题The safe working load of the derrick is （）.
A.5 tons B.5 metres C.5 feet D.5 years
It’s going to rain. Don’t forget （）the hatches.A. to cl...
单项选择题It’s going to rain. Don’t forget （）the hatches.
A. to close B. to open C. to close and open D. closing
The crane is （）. Could you ask somebody to repair it?A....
单项选择题The crane is （）. Could you ask somebody to repair it?
A. work well B. good C. out of order
