单项选择题
A.join lines of equal size B.form a temporary eye (loop) at the end of a line C.be a stopper D.keep a line from fraying
A block that can be opened at the hook or shackle end t...
单项选择题A block that can be opened at the hook or shackle end to receive a bight of the line is a（）.
A.bight block B.gin block C.heel block D.snatch block
You can safely step in the bight of a line（）.A.when it ...
单项选择题You can safely step in the bight of a line（）.
A.when it is not under strain B.if both ends are made fast C.in an emergency D.at no time
When a pilot is on board to pilot the vessel the Letter...
单项选择题When a pilot is on board to pilot the vessel the Letter（）must be hoisted.
A.G B.H C.B D.N
