题目内容

具有过敏毒素作用的补体成分为

A. Cl
B. C3a
C8
D. C9
E. C2a

查看答案
更多问题

简述调拨价格的含义。

下列哪些CD分子与B细胞识别、黏附、活化无关

A. CD19
B. CD21
CD40L
D. CD40
E. CD80

Questions 16 to 18 are based on the passage you have just heard.

A. Helping control pain of patients.
B. Contributing to being calm and happy.
C. Enhancing interpersonal relationship.
D. Increasing young children"s mental ability.

IgG用木瓜蛋白酶水解后可以形成

A. 一个Fab段和一个Fc段
B. 两个Fab段和一个Fc段
C. 两个Fab段
D. 两个Fab段和pFc'
E. 一个F(ab')2和pFc'

答案查题题库