22.任何呼吸衰竭均可出现
A. 氧分压下降
B. 二氧化碳分压升高
C. 氧分压下降,二氧化碳分压升高
D. 氧分压和二氧化碳分压均下降
E. 氧氧分压和二氧化碳分压均升高
Offer suggestions or possible solutions to the problems of nature-unfriendly behavior.driving private cars is becoming fashionable.
Offer suggestions or possible solutions to the problems of nature-unfriendly behavior.Abusive use of exhaustible resources has caused serious environmental problems
Offer suggestions or possible solutions to the problems of nature-unfriendly behavior:disposable plastic lunch boxes are over-used in restaurants.