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