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【单选题】
Th2型细胞能分泌IL-4、IL-5等细胞因子，与B淋巴细胞增殖、分化、成熟有关，能促进抗体生成，增强抗体介导的体液免疫应答，还分泌IL-10、IL-13以及CCL-7等一些趋化因子。这些细胞因子在体内发挥着不同的生物学作用。可促进IgE类别转换的细胞因子是（）
A.
IL-5
B.
IL-10
C.
IL-4
D.
IL-13
E.
CCL-7
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