单项选择题
Outlets in gasoline fuel lines are（）.
A.permitted for drawing fuel samples
B.permitted for draining fuel from lines
C.permitted for bleeding air from lines
D.prohibited
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A.danger to crew and cargo
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C.possible need to jettison
D.All of the above -
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It is generally NOT allowed to clean up an oil spill by using（）.
A.a boom
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If your asphalt barge has operated more than 12 months in saltwater in the 24 month period since it was last dry-docked，when is it required to be hauled out again? （）
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C.24 months since last dry-docking
D.36 months since last dry-docking
