單項(xiàng)選擇題In admiralty sailing directions, bands is the word used to indicate()marking.

A.horizontal
B.vertical
C.diagonal
D.vertical or diagonal


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1.單項(xiàng)選擇題In admiralty sailing directions, stripes is the word used to indicate()marking.

A.horizontal
B.vertical
C.diagonal
D.vertical or diagonal

2.單項(xiàng)選擇題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