单项选择题
A.cotton B.rags C.bucket D.sawdust
（）(解开) the fore and aft ropes.A.ThatchB.DetachC.TieD.La...
单项选择题（）(解开) the fore and aft ropes.
A.Thatch B.Detach C.Tie D.Launch
Put on （）(艇底塞) and hand the fender and the buoy.A. boat...
单项选择题Put on （）(艇底塞) and hand the fender and the buoy.
A. boat plug B. boat nests C. boat engine D. boat deck
We are going to carry out an/a （）(应急演习).A. fire drillB....
单项选择题We are going to carry out an/a （）(应急演习).
A. fire drill B. emergency drill C. boat drill D. abandon ship drill
