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 成人高等教育 / 免疫学基础
正确率:100%

胚胎期易于诱导免疫耐受的原因是
  • A、
    A.具有由母体获得的IgG抗体
  • B、
    B. 免疫系统处于免疫抑制状态
  • C、
    C. 免疫系统处于异常活性状态
  • D、
    D. 免疫系统尚未发育完全
  • E、
    E. 不存在克隆清除
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