单项选择题
A.3ml B.4ml C.5ml D.9ml E.12ml
A.1:1溶液 B.1:2溶液 C.1:2:3溶液 D.ORS溶液 E.0.9%氯化钠溶液
A.2:1等张含钠液20ml/kg B.1:1液20ml/kg C.1:2:3液20ml/kg D.2:3:4液20ml/kg E.1:2液20ml/kg