单项选择题
Cement wash is used for fresh water tanks and double bottom tanks. ()
A.沥青用于淡水舱和双层底舱。 B.水泥浆用于淡水舱和双层底舱。 C.水泥浆用于污水舱和双层底舱。 D.沥青用于污水舱和双层底舱。
单项选择题 All the cargo wires must be adjusted well.()
单项选择题 The funnel and mast standing on deck like a guard. ()
单项选择题 The height from waterline to the main deck is called freeboard.()