22×（1-211）+22
=22×911+22，
=18+22，
=40（人）．
答：全班有40人．
能介导ADCC作用的Ig有（）。
A.IgG
B.IgM
C.血清型单体IgA
D.IgD
E.寄生虫抗原特异性IgE
In relation to employment law, explain the meaning of redundancy and the rules that govern it. (10 marks)
