单项选择题

A.2%利多卡因与0.75%罗哌卡因对半混合,0.5~0.7ml/kg
B.1%罗哌卡因,0.2~0.7ml/kg
C.1%地卡因,0.2~0.5ml/kg
D.3%普鲁卡因,0.5~0.7ml/kg
E.2%氯普鲁卡因,0.05~0.1ml/kg