题目内容
三条补体激活途径都必须具备的成分是
2021-09-22
A.C1s和C1r
B.C4和C2
C.B因子和D因子
D.C3及C5~C9
E.D因子和P因子
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='23967' and id < 2076166 and id<>'2076166' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='23967' and id > 2076166 and id<>'2076166' order by id asc limit 5