单项选择题
Each completed page of the Oil Record Book must be signed by the （）.
A.engineer on watch B.Chief Engineer C.Chief Mate D.Master
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 （）.
单项选择题 The approval period for a shipboard oil pollution emergency plan expires after （）.
