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【单选题】
关于冷凝集素试验,错误的是
A.
冷凝集素,为IgM完全抗体
B.
凝集反应的高峰在0~4℃,当温度回升到37℃时凝集消失
C.
IgM效价参考区间为<1:4(4℃)
D.
阳性是诊断冷凝集素综合征的主要依据
E.
流行性感冒等也可阳性
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