介导I型超敏反应的免疫球蛋白是()
A.IgA
B.凝聚的IgA
C.IgE
D.IgM
E.IgG
参考答案:C
--- The sports shoes must be Linda’s.
--- No, they _____ be. They’re too small for her.
A.mustn’t
B.can’t
C.may not
D.might not
在资本主义社会,剩余价值是如何被瓜分的?