单项选择题
A.20mg/kg~3500mg/kg;20mg/kg B.20mg/kg~2500mg/kg;20mg/kg C.5mg/kg~3500mg/kg;5mg/kg D.5mg/kg~2500mg/kg;5mg/kg
A.0.1 B.0.2 C.0.3 D.0.4
A.5.0~7.5 B.5.0~8.0 C.5.5~7.5 D.5.5~8.0