单项选择题
The main body of a vessel is the （）.
A.hull
B.superstructure
C.engine room
D.poop
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相关考题
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单项选择题
Sailors should keep （）at sea.
A.lookout
B.outlook
C.uplook
D.lookup -
单项选择题
（）refers to the height from the waterline to the bottom of the ship.
A.Draft
B.Freeboard
C.Derrick
D.Drift -
单项选择题
（）refers to the repair the ship every year.
A. Voyage repair
B. Annual repair
C. Periodical repair
D. Survey check
