单项选择题
As a watch officer when bunkering, which of the following does require his individual attention?（）
A.draft of the vessel B.rate of delivery C.communication with terminal personnel D.observation of manifold valves
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（）
单项选择题 When administering artificial respiration to an adult, the breathing cycle should be repeated about （）
