单项选择题
The hull is divided by decks and （）(舱壁).
A.holds B.tanks C.bulkheads D.hatches
单项选择题 These tanks are called （）(双层底) tanks.
单项选择题 At the fore end of a ship is the fore （）(尖舱).
单项选择题 The after part of a ship is called （）(船尾).
