单项选择题
In admiralty sailing directions, bands is the word used to indicate（）marking.
A.horizontal B.vertical C.diagonal D.vertical or diagonal
单项选择题 In admiralty sailing directions, stripes is the word used to indicate（）marking.
单项选择题 In anchoring orders, up and down means（）.
单项选择题 In anchoring orders, walk back the chain means（）.
