单项选择题
A J-chaser is used to（）.
A.transfer a pennant wire to the anchor handling vessel B.clean chain as it is hauled into the rig C.lower spring buoys into the water D.retrieve an anchor after the buoy has been lost
单项选择题 A fid is a（）.
单项选择题 A common class of wire rope is the 6X37 class. What does the 37 represent?（）
单项选择题 A Chinese stopper (two lines) will hold best when you（）.
