单项选择题
A. towing line B. heading line C. towed line D. heaving line
Get（）（碰垫）ready！A.tugsB.fendersC.ropesD.barges
单项选择题Get（）（碰垫）ready！
A.tugs B.fenders C.ropes D.barges
（）（调整）ropes when necessary.A.TryB.AdjustC.NoticeD.Opera...
单项选择题（）（调整）ropes when necessary.
A.Try B.Adjust C.Notice D.Operate
Each line has a large（）（琵琶头）at the end.A.holeB.eye spl...
单项选择题Each line has a large（）（琵琶头）at the end.
A.hole B.eye splice C.ring head D.chain
