单项选择题
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
Each life preserver must be readily accessible to the p...
单项选择题Each life preserver must be readily accessible to the person for whom it is intended while he or she is（）.
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
Each life jacket light that has a non-replaceable power...
单项选择题Each life jacket light that has a non-replaceable power source must be replaced（）.
A.every 6 months after initial installation B.every 12 months after initial installation C.every 24 months after initial installation D.on or before the expiration date of the power source
A person reports to you with a fishhook in his thumb. T...
单项选择题A person reports to you with a fishhook in his thumb. To remove it you should（）.
A.pull it out with pliers B.cut the skin from around the hook C.push the barb through，cut it off，then remove the hook D.have a surgeon remove it
