单项选择题
A.becket bend B.blackwall hitch C.figure-eight knot D.square knot
In the manufacture of wire rope，if the wires are shaped...
单项选择题In the manufacture of wire rope，if the wires are shaped to conform to the curvature of the finished rope before they are laid up，the rope is called（）.
A.composite B.left-lay C.improved D.preformed
In order to retrieve an inflatable life raft and place ...
单项选择题In order to retrieve an inflatable life raft and place it on deck，you should heave on the（）.
A.lifelines B.righting strap C.sea anchor D.towing bridle
In determining the scope of cable to be used when ancho...
单项选择题In determining the scope of cable to be used when anchoring，what would NOT be considered?（）.
A.Depth of the water B.Character of the holding ground C.maintenance cost for the chain D.Type of anchor cable
