动物机体在抗病毒感染免疫中,在特异性免疫阶段具有中和病毒和调理作用的免疫分子是() 发布时间:2017-07-07 12:53 │ 来源:www.tikuol.com 题型:单项选择题 B1型题 问题: 动物机体在抗病毒感染免疫中,在特异性免疫阶段具有中和病毒和调理作用的免疫分子是()A.IgGB.干扰素C.趋化因子D.白介素-2E.分泌型IgA
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题型:单项选择题 B1型题 —Excuse me, must I finish my homework now? —No, you _______. You can hand it in tomorrow. [ ]A. mustn't B. needn'tC. shouldn'tD. wouldn't 查看答案