单项选择题
A.rubbing affected area with ice or snow B.rubbing affected area briskly to restore circulation C.wrapping area tightly in warm cloths D.warming exposed parts rapidly
The rescuer can best provide an airtight seal during mo...
单项选择题The rescuer can best provide an airtight seal during mouth-to-mouth resuscitation by pinching the victim’s nostrils and（）.
A.cupping a hand around the patient's mouth B.keeping the head elevated C.applying his mouth tightly over the victim's mouth D.holding the jaw down firmly
The principal personnel hazard unique to Halon extingui...
单项选择题The principal personnel hazard unique to Halon extinguishers is（）.
A.displacement of oxygen B.skin irritation C.inhaling toxic vapors D.eye irritation
The most effective warming treatment for a crew member ...
单项选择题The most effective warming treatment for a crew member suffering from hypothermia is（）.
A.running or jumping to create heat B.lying in the sun C.a warm water bath D.mouth-to-mouth resuscitation
