- 搜标题
- 搜题干
- 搜选项
单项选择题
What best describes an anchor buoy?(
A． A.A black ball that is hoisted when the ship anchors
B． B.A buoy attached to the anchor
C． C.A buoy attached to the scope of an anchor chain
D．D.A mark of the number of fathoms in an anchor chain
B． B.A buoy attached to the anchor
C． C.A buoy attached to the scope of an anchor chain
D．D.A mark of the number of fathoms in an anchor chain
