单项选择题
A sheepshank is used to（）.
A.keep a line from fraying B.join lines of unequal size C.stop off a line D.shorten a line
单项选择题 A preventer guy（）.
单项选择题 A piece of small stuff (small line) secured to an object to prevent it from going adrift is a（）.
单项选择题 A new coil of nylon line should be opened by（）.
