Whichofthefollowingwillincreasesusceptibilitytohypoxia?（）
A. smokingandalcohol
B. fatigue
C. smokingandalcoholaswellasfatigue.
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Carbonmonoxideisdangerousbecause（）
A. itdisplacesoxygenfromtheblood'sredcells
B. itishighlyacidicandattackstheliningofthekings
C. itdisplacesoxygenfromthelungscausingsuffocation
Whichofthefollowingwouldbesuitabletreatmentforapersonsufferingfromcarbon（）monoxidepoisoning?（）
Administeroxygen.
B. Havethemre-breathetheirexhaledbreathfromabagplacedoverthenoseandmouth.
C. Giveplentyofwater.
Whichofthefollowingwouldmostlikelyleadtocarbonmonoxidecontaminationofthecockpitatmosphere?（）
A. excessiveuseofcarburetorheat
B. flylowinaverythicksmokehaze
C. aleakintheengineexhaustsystem
Hypoxiaistheresultofwhichoftheseconditions?（）
A. Insufficientoxygenreachingthebrain.
B. Excessivecarbondioxideinthebloodstream.
C. Limitedoxygenreachingtheheartmuscles.
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