在成熟B细胞转化成浆细胞过程不起作用的细胞因子是()
A.TNF
B.IL-2
C.11-4
D.IL-5
E.IL-6
参考答案:A
The door opened and there .
A.entering our English teacher
B.entered our English teacher
C.did our English teacher enter
D.our English teacher entered
当美元的外汇牌价是8.3元/美元时,其影子汇率是( )元/美元。
A.8.3
B.8.96
C.8.37
D.14.94