属于代偿性代谢性酸中毒的生化特征是

A、HCO[img=~\/QImg\/2013-06-26-17-11-54\/image021.gif][img=~\/QImg\/2013-06-26-17-11-54\/image003.gif]\/H[img=~\/QImg\/2013-06-26-17-11-54\/image002.gif]CO[img=~\/QImg\/2013-06-26-17-11-54\/image021.gif]>20\/1
B、血浆pH=7.4
C、PCO[img=~\/QImg\/2013-06-26-17-11-54\/image002.gif]升高
D、呼吸变浅变慢
E、血浆CO[img=~\/QImg\/2013-06-26-17-11-54\/image002.gif]CP升高