单项选择题
()(舷墙排水孔) permits the escape of water.
A. A wash port B. A bulwark port C. A+B D. Bulkhead
单项选择题 The ()(排水孔) is a deck drain.
单项选择题 ()(富余水深) is the depth remaining under a ship’s bottom.
单项选择题 Is this a ()(淡水) tank?