单项选择题
A. main deck B. tweendeck C. upper deck D. lower deck
The height from water level to deck is called （）(干舷).A....
单项选择题The height from water level to deck is called （）(干舷).
A. draft B. freeboard C. draught D. port side
The hull is divided by decks and （）(舱壁).A.holdsB.tanksC...
单项选择题The hull is divided by decks and （）(舱壁).
A.holds B.tanks C.bulkheads D.hatches
These tanks are called （）(双层底) tanks.A. ballastB. doubl...
单项选择题These tanks are called （）(双层底) tanks.
A. ballast B. double bottom C. oil D. fore deck
