题目内容

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

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

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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

How many classes of immunoglobulins are there ()

A. 5
B. 6
C. 7
D. 4
E. 10

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