A.acids or alkalies
B.diesel oil
C.acids，but not alkalies
D.alkalies，but not acids
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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
A.is
B.is to be
C.will be
D.being
A.with puncture wounds
B.when all other means have failed
C.when the victim is unconscious
D.to prevent bleeding from minor wounds
最新試題
The danger associated with using carbon dioxide in an enclosed space is（）.
For use as protection from gas leaking from a refrigeration unit，each ship must be equipped with a（）.
Symptoms of heat stroke are（）.
The grab rail of a metal lifeboat is normally located（）.
The minimum concentration of a vapor in air which can form an explosive mixture is called the（）.
In order for combustion to occur inside a piping system such as a vapor collection header in a marine emmission control system，there must be（）.
The first treatment given to a person overcome by benzene vapor should be to（）.
The depth over a shallow patch，（）about 1．5 miles southeastward of Nanshan Tou lighthouse，reduces to 8 meters.
The MOST important element in administering CPR is（）.
The Master or person in charge of a ship shall insure that each deck from which lifeboats are launched is（）.