关于AFP诊断原发性肝癌的描述，下列正确的是

A．AFP大于100ng/ml持续4周

B．AFP大于100ng/ml持续8周

C．AFP大于200ng/ml持续4周

D．AFP大于200ng/ml持续8周

E．AFP大于500ng/ml持续2周

[单选题]关于AFP诊断原发性肝癌的描述，下列正确的是（　　）。A.AFP＞100ng/mL持续4周B.AFP＞100ng/mL持续8周C.AFP＞200ng/

[单选题]甲胎蛋白(AFP)诊断肝癌的标准是A．AFP≥500ng／ml持续3周，或AFP≥200ng／ml，持续8周B．AFP≤500ng／ml持续4周，或AFP≤200ng/ml，持续8周C．AFP≥500ng／ml持续6周，或AFP≥200ng/ml，持续9周D．AFP≤500ng／ml持续2周，或AFP≤200ng／ml，持续6周E．AFP≥500ng/ml持续7周，或AFP≥200ng／ml，持续10周

[单选题]排除其他疾病后，AFP诊断原发性肝癌的标准是( )A．AFP>500μg/ml持续2周B．AFP>500μg/ml持续4周C．AFP>200μg/ml持续2周D．AFP>200μg/ml持续4周E．AFP>100μg/ml持续8周

[单选题]腹水中AFP大于多少时，有助于诊断原发性肝癌A.500μg/LB.250μg/LC.100μg/LD.50μg/LE.25μg/L

[单选题]原发性肝细胞肝癌患者血清AFP常大于A.150μg／LB.50μg／LC.300μg/LD.200μg/LE.100μg／L

[单选题]原发性肝细胞肝癌患者血清AFP常大于A.150μg／LB.50μg／LC.300μg/LD.200μg/LE.100μg／L

[单选题]原发性肝细胞肝癌患者血清AFP常大于A.150μg／LB.50μg／LC.300μg/LD.200μg/LE.100μg／L

[单选题]原发性肝细胞肝癌患者血清AFP常大于（）A .150μg／LB .50μg／LC .300μg/LD . D.200μg/LE .100μg／L

[单选题]原发性肝细胞肝癌患者血清AFP常大于（）A.150μg／LB.50μg／LC.300μg/LD.200μg/LE.100μg／L

[问答题] 试述AFP检查对原发性肝癌的诊断标准。