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【单选题】
下列五种反应依次属于（） （1）某人一吃海鲜就出现严重的腹泻 （2）美国有一免疫功能异常的儿童，不能接触任何病原体，少量病菌感染亦可导致严重发病 （3）流感病毒侵入人体时，有时可作用于红细胞，使红细胞成为靶细胞，导致体内产生抗红细胞抗体，这种抗体也可对正常红细胞发生作用，引起红细胞裂解 （4）人体感染酿脓链球菌后，机体产生的抗体不仅向它发起进攻，也向心脏瓣膜发起进攻 （5）当细菌的外毒素进入人体后，体内产生特异性的抗体与之结合，使它丧失毒性 ①正常免疫 ②自身免疫病 ③免疫缺陷病 ④过敏反应A.
②③①④③
B.
④③②②①
C.
②①④①③
D.
④③②①①
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A.
reveals the relationship between sleep problems and age
B.
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C.
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D.
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A.
carried away
B.
put forward
C.
consisted in
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persisted in
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