Waste oil from the lube oil sumps of machinery may NOT be （）. A: drained into the vessels bilges B: reclaimed for other uses C: held in a slop tank D: purified and then reused

After taking on fuel oil, the hoses should be disconnected and （）. A: draped over the fantail to dry out B: drained over the side and washed out C: drained into the bilges and washed out D: drained into buckets or fuel tank

除了_,油水分离器起作用。( ) A: when pumping out bilges排舱底水时 B: when cleaning oil tanks清洗油舱时 C: when ballasting加压载水时 D: when deballasting排压载水时