单项选择题
A mooring buoy，if lighted，shows which color light?（）
A.Yellow B.White C.Blue D.Any color except red or green
单项选择题 A monkey fist is found on a（）.
单项选择题 A method used to make an eye in a bight of line where it cannot be spliced is known as（）.
单项选择题 A metal ring on the bottom of a block，to which the standing part of a tackle is spliced，is known as a(n)（）.
