单项选择题
A. fresh water B. sea water C. both A and B D. ballast water
Everything on the bridge should （）clean and tidy.A.kept...
单项选择题Everything on the bridge should （）clean and tidy.
A.kept B.keep C.be kept D.keeping
Decks, superstructure and hand rails may be washed with...
单项选择题Decks, superstructure and hand rails may be washed with （）water at sea.
A.sea B.ballast C.fresh D.cement
The sailor keeping （）watch should clean the gangway, th...
单项选择题The sailor keeping （）watch should clean the gangway, the rails, bulwark and the spaces around the gangway.
A.navigation B.gangway C.port D.anchor
