单项选择题
A.hull B.superstructure C.engine room D.poop
Sailors should keep （）at sea.A.lookoutB.outlookC.uplook...
单项选择题Sailors should keep （）at sea.
A.lookout B.outlook C.uplook D.lookup
（）refers to the height from the waterline to the bottom...
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
（）refers to the repair the ship every year.A. Voyage re...
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
