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