单项选择题
A.Enough for 100 percent of the persons allowed on board B.One for each work station and industrial work site C.Enough for 150 percent of the persons allowed on board D.Both A and B above
A.more harmful to sea life than lighter oils B.easier to clean up than lighter refined oils C.less harmful to sea life than lighter oils D.not a real threat to marine life
A.at work B.in his or her berthing area C.BOTH at work and in his or her berthing area D.None of the above are correct