题目内容
对TI-2原描述错误的是
2021-09-22
A.多为细菌胞壁与夹膜多糖
B.抗原表位密度太高可使B细胞无应答
C.有高度重复序列
D.可激活不成熟B细胞
E.抗原表位密度太低不足以激活B细胞
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