單項選擇題

A vessel may enter a traffic separation zone（）.

A.in an emergency
B.to engage in fishing within the zone
C.to cross the traffic separation scheme
D.All of the above

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單項選擇題

A ship that，at any time，operates seaward of the outermost boundary of the territorial sea is required to prepare，submit，and maintain a(n)（）.

A.synthetic plastic discharge plan
B.oil discharge plan
C.shipboard oil pollution emergency plan
D.vapor recovery procedures plan

單項選擇題

A safety shackle is identified by its（）.

A.shape
B.pin
C.certification stamp
D.color code