【单选题】【消耗次数：1】
HIV侵犯人体免疫系统主要导致哪一种免疫细胞不断减少（ ）
①
巨噬细胞
②
NK细胞
③
CD8+T淋巴细胞
④
CD4+T淋巴细胞
⑤
造血干细胞
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相关题目
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关于T淋巴细胞和B淋巴细胞介导的免疫应答，下列哪项是错误的?
①
对TD抗原的应答都产生记忆细胞
②
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【多选题】
关于 CD8+T 细胞介导的细胞免疫，下列哪些是正确的?
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可因接触非特异性抗原而活化
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CD3 传递第一信号
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