国际牙科联合会系统用两位数记录牙位。左下区乳牙用几表示（）
A.4
B.5
C.6
D.7
E.8
参考答案：D
(a) Compute Stephen’s Case I income for the income tax years 2008 and 2009 assuming he has elected for income averaging. (7 marks)
造釉细胞瘤的瘤细胞：免疫组化染色阳性的标记物有（）
A.CK
B.Vimentin
C.LCA
D.Desmin
E.S-100
