单项选择题
A.inner bottom plating and longitudinals
B.decks and bulkheads
C.double bottom girders
D.topside and hopper tank sloping plating and longitudinals
单项选择题 The Captain’s accommodation comprising rooms certified for his exclusive use may be（）in the measurement of vessel’s tonnage.
单项选择题 The deadweight of a bulk carrier consists of（）.
单项选择题 The extension of the after part of the keel in a single-screw vessel upon which the stern post rests is called the（）.