题目内容

Which of the following cell to cell interactions are not MHC restricted?

A. CTL and target cells
B. Th2 and B cells
C. T cell and DC
D. NK and target cells
E. Th1 and macrophage

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Which of the following statements is correct about the killing of target cells by CTLs?

A. CTLs don’t need to contact target cells.
B. When target cells are dissolved, CTLs are damaged at the same time.
CTLs have specific killing effect.
D. Perforin can induce target cell apoptosis.
E. One CTL can only kill one target cell.

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Which cells play major roles in clearing intracellular pathogen infection?

A. Th1 and Th2
B. Th1 and CTL
C. Th2 and CTL
D. Th17 and CTL
E. Tfh and CTL

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Which of the following cytokines is necessary for T cell proliferation?

A. IL-1
B. IL-2
C. IL-4
D. IL-10
E. IL-12

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The patient, male, 30 years old, was found HIV antibody positive in physical examination. Which kind of cells in his body is most significantly reduced?

A. CD4 +T cells
B. CD8 + T cells
C. B cells
D. NK cells
E. Monocytes

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Which of the following cell to cell interactions are not MHC restricted?

A. CTL and target cells B. Th2 and B cells C. T cell and DC D. NK and target cells E. Th1 and macrophage

Which of the following statements is correct about the killing of target cells by CTLs?

Which cells play major roles in clearing intracellular pathogen infection?

Which of the following cytokines is necessary for T cell proliferation?

The patient, male, 30 years old, was found HIV antibody positive in physical examination. Which kind of cells in his body is most significantly reduced?

A. CTL and target cells
B. Th2 and B cells
C. T cell and DC
D. NK and target cells
E. Th1 and macrophage