单项选择题
Following a grounding, you can best determine that a SLACK fuel oil tank has been holed by （）.
A.sounding the tank B.waiting for the vessel to list C.examining tank boundaries D.checking fuel oil strainers
单项选择题 Bilges may be pumped （）.
单项选择题 Waste oil from the lube oil sumps of machinery may NOT be （）.
单项选择题 Portable carbon dioxide fire extinguishers should be sent ashore to be recharged （）.
