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【单选题】
关于正向间接凝集抑制试验,错误论述是A.
用于抗原检测
B.
诊断试剂为抗原致敏的载体和相应抗体
C.
试验时先将待测标本与试剂抗体结合
D.
若出现凝集反应则标本中有待测抗原存在
E.
若不出现凝集反应则标本中有待测抗原存在
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