题型:问答题 简答题 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 查看答案
题型:问答题 简答题 The most probable position of the object of a search at any given time is the().A.datumB.estimated positionC.search pointD.initial point 查看答案