A.Lack of oxygen
B.Methane gas
C.Hydrogen sulfide gas
D.Carbon monoxide
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A.start chest compressions before the victim is removed from the water
B.drain water from the lungs before ventilating
C.begin mouth-to-mouth ventilations as soon as possible
D.do not tilt the head back since it may cause vomiting
A.In the same direction as the anticipated drift
B.In the opposite direction of the anticipated drift
C.Perpendicular to the line of anticipated drift
D.Downwind
A.Radio checks and time checks
B.Inter-vessel safety and search and rescue
C.Working with helicopters
D.Radio direction finding
A.stopping
B.to stop
C.to be stopped
D.to be stopping
A.propulsion horsepower available
B.pulling ability at cruise power
C.towing winch capability
D.pulling ability under static conditions
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An uncontrolled flow of gas，oil，or other well fluids into the atmosphere is called a（）.
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When carrying out a parallel track search pattern，the course of the search units should normally be which of the following?（）
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