题目内容

能激活补体经典途经的Ig是（）

A. IgG1、IgG2、IgG3、IgM
B. IgG1、IgG2、IgG4、IgM
C. IgIgIgIgM
D. IgG4、IgIgIgD
E. 凝聚的IgG4、IgIgE

查看答案

搜索结果不匹配？点我反馈

更多问题

IP地址的主要类型有几种：（）

A. 4
B. 5
C. 6
D. 7

Although a teenager，Fred could resist__________ what to do and What not to dO．

A. being told
B. telling
C. to be told
D. to tell

It is high time that such practices。．

A. are ended
B. be ended
C. were ended
D. must be ended

Putting in a new window will__________ cutting away part of the roof．

A. include
B. involve
C. contain
D. comprise