城镇职工,按规定第一次购买公有住房的,免征一半契税。()
参考答案:错
I really didn’t know who____ for the broken window, for none of them admitted that he had done it.
A.to be blamed
B.is blamed
C.to blame
D.being blamed
抑制膜攻击复合物形成的是()
A.S蛋白
B.IgM与抗原结合形成的复合物
C.P因子
D.MBL
E.DAF