单项选择题
When discharging bilge water, which criteria must be observed?（）
A.The requirement for the oil content of bilge water discharged is 15 ppm B.No discharge in sensitive waters C.Any discharge in sensitive waters D.International, national or local requirements have to be observed
单项选择题 When bilge water is heated in a holding tank, which one of the following statements is not accurate?（）
单项选择题 Which one of the following is not generally recognized as one constitute of bilge water?（）
单项选择题 A centrifugal compressor’s purge recovery unit（）
