A.immerse the burn in cold water
B.administer aspirin
C.apply petroleum jelly
D.apply a bandage to exclude air
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A.be safe if mixed with fresh water
B.prevent seasickness
C.dehydrate you
D.protect against heat cramps
A.acids or alkalies
B.diesel oil
C.acids，but not alkalies
D.alkalies，but not acids
A.without losing the rhythm of respiration
B.only with the help of two other people
C.by not stopping the respiration for more than 5 minutes
D.at ten-minute intervals
A.directly under the boom
B.moving away from the boom
C.stopped dead in the water
D.tied to the boom
A.hoist man
B.limit switch
C.brake handle
D.preventer bar
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The governor brake shall be capable of controlling the speed of lowering a fully equipped lifeboat with its complement of persons on board at（）.
Seawater may be used for drinking（）.
The danger associated with using carbon dioxide in an enclosed space is（）.
Sign(s) of respiratory arrest requiring artificial respiration is(are)（）.
The FIRST treatment for a surface burn is to（）.
The depth over a shallow patch，（）about 1．5 miles southeastward of Nanshan Tou lighthouse，reduces to 8 meters.
The maximum speed of lowering for a lifeboat on gravity davits is controlled by the（）.
The most effective first aid treatment for chemical burns is to immediately（）.
The bottom row of plating next to the keel of a lifeboat is known as the（）.
The first treatment given to a person overcome by benzene vapor should be to（）.