单项选择题
A shroud is（）.
A.a light sail B.a topmast stay C.a sheet D.standing rigging
单项选择题 A sheepshank is used to（）.
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（）.
