单项选择题

A.血浆pH和[HCO-3]↓,PCO2
B.血浆PCO2和[HCO-3]↓,pH↑
C.血桨pH、PCO2[HCO-3]均↓
D.血浆pH和PCO2↑,[HCO-3]↓
E.血浆pH、PCO2和[HCO-3]均↑