血清蛋白电泳时，泳动最慢的蛋白是（）
A.γ球蛋白
B.M蛋白
C.β球蛋白
D.α2球蛋白
E.α1球蛋白
参考答案：A
I need to get another dictionary, because ______ cover is dirty and ______ page is missing．
A．a; a
B．a; the
C．the; a
D．the ; the
The movie actor Arnold Schwargenegger, who is running for governor of California, belongs to the conservative Democratic Party.
