单项选择题
（）（班轮）sail on regular routes.
A. Light ships
B. Lift crafts
C. Liners
D. Tramps
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Pass the spring round（）(卷筒),and then heave away easy.
A.capstan
B.bitt
C.the drum
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单项选择题
（）（不定期船）run in all parts of the world.
A.Barges
B.Tramps
C.Ferries
D.Liners -
单项选择题
（）（散货）ships carry large quantities of cargo.
A. Bulk cargo
B. Oil
C. Gas
D. General cargo
