关于体液免疫的叙述中正确的是 A.有的抗原可以直接刺激b淋巴细胞b.抗体是由b淋巴细胞分泌的c.抗体一般可以直接杀死入侵的细胞 D.记忆b细胞 Template




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tomski关于体液免疫的叙述中正确的是 a.有的抗原可以直接刺激b淋巴细胞b.抗体是由b淋巴细胞分泌的c.抗体一般可以直接杀死入侵的细胞 d.记忆b细胞 coloring