单项选择题
When is the most critical time of bunkering in regards to oil pollution?（）
A.lining up the systems B.topping off C.starting delivery D.connecting hoses and joints
单项选择题 As a watch officer when bunkering, which of the following does require his individual attention?（）
单项选择题 Drinking salt water will （）
单项选择题 Immediately after abandoning a vessel, lookouts should be posted aboard liferafts to look for（）
