单项选择题
A. Except B. Although C. In addition to D. But
（）(放低) the embarkation ladder.A. LowerB. HoistC. Put on...
单项选择题（）(放低) the embarkation ladder.
A. Lower B. Hoist C. Put on D. Put down
Collect oil with （）(油桶).A.cottonB.ragsC.bucketD.sawdus...
单项选择题Collect oil with （）(油桶).
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
