单项选择题
A.SSC 250ml,SDS 50mlB.SSC 500ml,SDS 50mlC.TMB 100ml,SDS 10mlD.SD S25ml,SSC 5ml
A.-4.2/aaB.sea/seaC.aa/seaD.-4.2/sea
A.654B.-28C.4.2D.-29