单项选择题
A chain stripper is used to（）.
A.prevent chain from clinging to the wildcat B.clean the marine debris from the chain C.flake chain from a boat's chain locker D.clean chain prior to an x-ray inspection
单项选择题 A carling is used aboard ship（）.
单项选择题 A boom vang（）.
单项选择题 A bluff bar is a bar（）.
