单项选择题
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
The sailor taking （）watch should do cleaning work on th...
单项选择题The sailor taking （）watch should do cleaning work on the bridge.
A. 0 to 4 B. 4 to 8 C. 8 to 12 D. 12 to 16
