单项选择题
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
Their task is to（）（驾驶） the ship safely.A.navigateB.oper...
单项选择题Their task is to（）（驾驶） the ship safely.
A.navigate B.operate C.takeover D.drive
