Lossofcabinpressuremayresultinhypoxiabecauseascabinaltitudeincreases（）
A. thepercentageofnitrogenintheairisincreased.
B. oxygenpartialpressureisdecreased.
C. thepercentageofoxygenintheairisdecreased.
查看答案
Whichisacommonsymptomofhyperventilation?（）
A. Tinglingofthehands,legs,andfeet.
B. Increasedvisionkeenness.
C. Decreasedbreathingrate.
Whichwouldmostlikelyresultinhyperventilation?（）
Astressfulsituationcausinganxiety.
B. Theexcessiveconsumptionofalcohol.
C. Anextremelyslowrateofbreathingandinsufficientoxygen.
Thesymptomsofhyperventilationare（）
A. quitedifferenttothoseofhypoxia
B. quitesimilartothoseofhypoxia
C. profusesweating
Themainfunctionofhemoglobinisto（）
A. carrycarbondioxidearoundtobody
B. carryoxygenaroundtobody
C. carrycarbonoxidearoundtobody
微信支付 
支付宝支付