A.7.25~7.35 B.7.15~7.25 C.1.45~1.55 D.7.35~7.45 E.7.55~7.65
A.K+和Cl- B.K+和HPO2-4 C.Na+和Cl- D.Na+和HPO2-4 E.Na+和HCO-3
A.Na+ B.NH+4 C.Ca2+ D.HCO-3 E.K+