单项选择题
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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相关考题
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单项选择题
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 -
单项选择题
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 -
单项选择题
A wind blows round anticlockwise defines（）.
A.backing ( of wind )
B.beach ( to )
C.veering ( of wind )
D.maintaining direction of the wind
