单项选择题
When anchoring，good practice requires 5 to 7 fathoms of chain for each fathom of depth. In deep water you should use（）.
A.the same ratio B.more chain for each fathom of depth C.less chain for each fathom of depth D.two anchors with the same ratio of chain
单项选择题 When anchoring a vessel under normal conditions，which scope of chain is recommended? （）
单项选择题 When anchored，increasing the scope of the anchor chain normally serves to（）.
单项选择题 What type of stopper would you use on a nylon mooring line? （）
