The characteristic of CTL killing target cells is
A. No direct cell contacts
B. No specificity
C. No cytokine involvements
D. No antigen stimulations
E. Release of perforin, granzyme and FasL expression
查看答案
Which of the following cells can induce the strongest naïve T cell activation?
A. Macrophages
B. Dendritic cells
C. Epithelial cells
D. B lymphocytes
E. Fibroblasts
Which of the following molecules contain ITAM in their molecular cytoplasmic regions?
A. CD3, CD4
B. CD3, CTLA-4
CD3, MHC
D. CD3, Igα/Igβ
E. CTLA-4, Igα/Igβ
The antigen-binding cleft of MHC class I molecule locates in
A. α1 and β1 domains
B. α1 and α2 domains
C. β1 and β2 domains
D. α2 and α3 domains
E. α2 and β2 domains
The properties of cytokine DO NOT include
A. The cytokines play roles mainly by autocrine and paracrine patterns.
B. The cytokine’s secretion is a self-limited event.
C. One cytokine may be synthesized by several types of cells.
D. The cytokines initiate their effects by binding to their receptors.
E. Multiple cytokines may mediate the same biological effects.
微信支付 
支付宝支付