单项选择题
A.to shoot B.to fire C.to let go D.to send to sky
Instead of whipping an end of a line，a temporary means ...
单项选择题Instead of whipping an end of a line，a temporary means of preventing the line from unraveling is to tie a（）.
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
