单项选择题
A.the Prevention of Pollution by Oil
B.the Prevention of Pollution by Noxious Liquid Substances in Bulk
C.Prevention of Pollution by Garbage from Ships
D.Prevention of Air Pollution from Ships
单项选择题 According to Annex Ⅴ of MARPOL 73/78, the dunnage, lining and packing materials which will float can be discharged when the ship is more than（）away from the nearest land.
单项选择题 According to Annex Ⅳ of comminuted and disinfected sewage using an approved system can be discharged when the ship is more than away from the nearest land（）
单项选择题 According to Anneal I of MARPOL 73/78, the discharging oil content of the machinery space bilges must be lower than（）