题型：选择题 The artist __ the judge gave a prize is the teacher __ I have been taught painting for over three years.A．from whom; by whomB．to whom; whoC．whom; whoD．to whom; by whom 查看答案
题型：单项选择题 醋酸纤维薄膜电泳可把血清蛋白分成5条带，由负极数起，依次是（）。A.γ、α1、α2、β、ALBB.ALB、β、α1、α2、γC.γ、β、α2、α1、ALBD.ALB、α1、α2、β、γE.α1、α2、β、γ、ALB 查看答案
