下列关于体液免疫的叙述中,不正确的是 A.有的抗原可以直接刺激B

下列关于体液免疫的叙述中,不正确的是

A.有的抗原可以直接刺激B细胞          

B.抗体是由浆细胞合成并分泌的

C.抗体一般可以直接消灭入侵的抗原

D.吞噬细胞可以摄取和处理抗原

答案

C

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