单项选择题
A.cow B.lot C.cbt
A vessel emitting harmful substances into the air or sp...
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
A vessel restricted by its ability to manoeuver by the ...
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
A vessel, other than a rescue unit, designated to co-or...
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
