单项选择题
（）is used for lifting cargo.
A.A mooring winch B.A windlass C.A deck crane D.A lifeboat engine
单项选择题 There are a lot of vessel in the vicinity. Please（）signal lamp at me for indentification.
单项选择题 （）is your draft?
单项选择题 （）is your maximum draught, please?
