单项选择题
A.horizontal B.vertical C.diagonal D.vertical or diagonal
In admiralty sailing directions, stripes is the word us...
单项选择题In admiralty sailing directions, stripes is the word used to indicate（）marking.
In anchoring orders, up and down means（）.A.the chain is...
单项选择题In anchoring orders, up and down means（）.
A.the chain is not upright B.the chain is tight C.the chain is upright D.the chain is slack
In anchoring orders, walk back the chain means（）.A.pay ...
单项选择题In anchoring orders, walk back the chain means（）.
A.pay away the chain B.take in the chain C.check up the chain D.take a strain on the chain
