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
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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
A.the falls from unhooking if the releasing gear is operated accidentally while the boat is being lowered
B.operation of the release lever until the boat is waterborne
C.the falls from rehooking after they have been released
D.accidental unhooking when the falls become slack
最新試題
The depth over a shallow patch，（）about 1．5 miles southeastward of Nanshan Tou lighthouse，reduces to 8 meters.
In painting a lifeboat following its overhaul，which parts must be painted bright red?（）
On a lifeboat equipped with Rottmer-type releasing gear，turning the releasing lever releases（）.
The minimum concentration of a vapor in air which can form an explosive mixture is called the（）.
Symptoms of heat stroke are（）.
If the survival craft is not loaded to full capacity，the personnel should be（）.
The maximum speed of lowering for a lifeboat on gravity davits is controlled by 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 backup system on an electric start survival craft is a（）.
For use as protection from gas leaking from a refrigeration unit，each ship must be equipped with a（）.