单项选择题

配制2:1等张含钠液120ml需

A.0.9%NaCl 80ml,5%NaHO340ml
B.0.9%NaCl 80ml,5%NaHO35ml,10%GS 35ml
C.0.9%NaCl 80ml,10%GS40ml
D.0.9%NaCl 40ml,5%NaHCO380ml
E.0.9%NaCl 80ml,5%NaHCO310ml,10%GS 30ml