单项选择题
A.anti-HEV阳性 B.抗核抗体(ANA.阳性 C.anti-HCV阳性 D.HBsAg阳性 E.anti-HAVIgM阳性
A.0.5~0.75mm B.0.25~0.5mm C.1~1.5mm D.2mm E.0.5mm