單項選擇題A vessel emitting harmful substances into the air or spilling oil into the sea is a().

A.polluter
B.emitter
C.spiller
D.oiler


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1.單項選擇題A vessel restricted by its ability to manoeuver by the nature of its work or its deep draft is().

A.hampered vessel
B.giving way vessel
C.vessel not under control
D.disabled vessel

2.單項選擇題A vessel, other than a rescue unit, designated to co-ordinate surface search and rescue operation within a specified area is known as().

A.salving vessel
B.co-ordinator surface search
C.mersar
D.the vessel being salved

3.單項選擇題A wind blows round anticlockwise defines().

A.backing ( of wind )
B.beach ( to )
C.veering ( of wind )
D.maintaining direction of the wind