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【单选题】
关于佐剂,错误的叙述是
A.
是一种非特异性免疫增强剂
B.
弗氏佐剂常用于人工自动免疫
C.
可以改变抗体产生的类型
D.
可延长抗原在体内的存留时间
E.
可以增强巨噬细胞的吞噬作用
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A.
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B.
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A.
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