单项选择题
A.Bow B.Stern C.Tail D.After
We need an experienced（）（一水）.A.ABB.seamanC.OSD.agent
单项选择题We need an experienced（）（一水）.
A.AB B.seaman C.OS D.agent
Ring the forecastle（）（钟）.A.bellB.clockC.hammerD.spanner
单项选择题Ring the forecastle（）（钟）.
A.bell B.clock C.hammer D.spanner
Modern ships are navigated by（）（卫星）.A.moonB.satelliteC....
单项选择题Modern ships are navigated by（）（卫星）.
A.moon B.satellite C.sextant D.radar
