制备胶剂常用的辅料有（）
A.冰糖
B.黄酒
C.花生油
D.明矾
E.阿胶
参考答案：A, B, C, D, E
The American soldiers are _______the country over for Saddam and his followers. [ ]
A. searching
B. looking
C. searching in
D. finding
类风湿因子是针对下列哪一分子Fc段抗原决定簇的特异性抗体（）
A.IgM
B.IgE
C.IgG
D.IgA
E.IgD
