题目(甲选题,抗体与抗原结合的部位是:A. VL和VH区B. CHI区C. CH 2区D. CH 3区E. CH 4区教师批阅(甲选题,抗体与抗原结合的部位是:A. VL和VH区B. CHI区C. CH 2区D. CH 3区E. CH 4区教师批阅题目解答答案A. VL和VH区