So many model League Members________the lead,we had no________winning victories one after

another. [      ]

A. taking; trouble  

B. take; difficulty

C. took; troubles  

D. taking; difficult

原发性肝癌的组织学类型中最常见的是（）

A.结节型

B.巨块型

C.弥漫型

D.肝细胞型

E.胆管细胞型