肾活检标本的取材要求是（）
A.动作要快
B.应避免组织自溶
C.固定液应新鲜配制
D.应含有肾小球
E.以上全都是
参考答案：E
Only when he met the girl his aunt introduced to him ____ that he had seen her before. [ ]
A. he realized
B. he did realize
C. realized he
D. did he realize
原发性肝癌定位诊断下述哪个方法最敏感（）
A.CT肝动脉造影
B.CT肝动脉碘油造影
C.X线肝血管造影
D.放射性核素肝显像
E.X线门静脉造影
