單項選擇題

【A1型題】代謝性酸中毒時()

A.NaHCO/HCO<20/1,原發(fā)性HCO
B.NaHCO/HCO<20/1,原發(fā)性NaHCO
C.NaHCO/HCO>20/1,原發(fā)性HCO
D.NaHCO/HCO>20/1,原發(fā)性NaHCO
E.NaHCOHCO<20/1,原發(fā)性NaHCO

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