单项选择题
A.Nylon B.Dacron C.Manila D.Sisal
The square knot is used for（）.A.forming temporary eyes ...
单项选择题The square knot is used for（）.
A.forming temporary eyes in lines B.joining two lines of equal size C.keeping line from unlaying or fraying D.joining two lines of different size
The rope which is rove from the truck to be used with a...
单项选择题The rope which is rove from the truck to be used with a bos’n chair is called a（）.
A.gantline B.life line C.strop D.whip
The rolling hitch could be used to（）．A.join two lines o...
单项选择题The rolling hitch could be used to（）．
A.join two lines of different sizes B.join two lines of equal sizes C.add strength to a weak spot in a line D.act as a stopper to transfer a line under strain
