單項選擇題

A casualty report of an intentional grounding of a ship is required under what condition?（）

A.Under any condition
B.If the grounding lasts over 24 hours
C.If it creates a hazard to the environment
D.At the owner's discretion

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單項選擇題

A buoy with a composite group-flashing light indicates a(n)（）.

A.bifurcation
B.fish net area
C.anchorage area
D.dredging area

單項選擇題

A block and tackle is “rove to advantage”. This means that the（）.

A.blocks have been overhauled
B.hauling parts of two tackles are attached
C.hauling part leads through the movable block
D.hauling part leads through the standing block