单项选择题
To prevent the spread of fire by conduction, you should （）.
A.cool the bulkheads around the fire B.remove combustibles from direct exposure C.close all openings to the area D.shut off all electric power
单项选择题 Each completed page of the Oil Record Book must be signed by the （）.
单项选择题 A shipboard oil pollution emergency plan is required of （）.
单项选择题 A fire is considered "under control" when （）.
