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【单选题】
关于CD4 + T细胞的免疫调节作用,下列哪错误的?★
A.
Th1 和Th2处于动态平衡状态,维持正常的免疫应答
B.
Th2 分泌IL-4、IL-5、IL-10、IL-13参与体液免疫
C.
Th1 分泌的IFN- g 可抑制Th2的增殖
D.
Th2 产生的IL-4增强Th1的增殖
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