题目内容

According to what can Ig be divided into 5 classes ()

A. H and L chains are all different
B. V regions are different
C. L chains are different
D. H chains are different
E. CL

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B cells can recognize Ag specifically, because they have ()

A. IgG
B. IgA
C. IgM
D. IgD
E. mIgM

What kind of cells can produce IgE ()?

A. DC
B cell
C. T cell
D. NK
E. Macrophage

After the treatment of papain, IgG can be divided into ()

A. 2 Fab and Fc
B. F(ab')2 and pFc'
C. F(ab')2 and Fc
D. 2Fab and pFc'
E. Fab and Fc

What kind of Ig is used for early diagnosis of infection ()

A. IgG
B. IgA
C. IgM
D. IgD
E. IgE