超星 - T细胞 - 查题吧

单选题

Which of the following molecular cytoplasmic regions contains ITAM?

A. CD2
B. CD3
CTLA-4
D. CD21
E. CD8

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单选题

Which of the following cytokines is a Th1 cytokine?

A. IL-2
B. IL-3
C. IL-4
D. IL-5
E. IL-6

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单选题

Which of the following cells is involved in the negative regulation of immune response?

A. Th1
B. Th2
C. Tfh
D. Th17
E. Treg

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单选题

Which of the following statements about γδT cells is wrong?

A. Its antigen receptor lacks diversity.
B. Recognition of antigens is restricted by MHC.
C. It is mainly distributed in skin and mucosa.
D. It has anti infection and anti-tumor effects.
E. Most of them are CD4(-)CD8(-)。

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单选题

The coreceptor of CTL is

A. CD3
B. CD4
CD8
D. CD28
E. CD2

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