刺激B细胞产生IgA的细胞因子是() A.IL-2 B.IL-4 C.TGF-β D 发布时间:2017-05-08 00:07 │ 来源:www.tikuol.com 题型:单项选择题 问题: 刺激B细胞产生IgA的细胞因子是()A.IL-2B.IL-4C.TGF-βD.TNFE.IFN
题型:单项选择题 The payoff on an interest-rate option:()A. comes some period after option expiration. B. is periodic, typically every 90 days. C. is greater than the "strike" rate. 查看答案