Pall is a poor man with            money, but            friends. He is always happy. [ ]

A.a little; much

B.little; many

C.many; much

D.many; little

企业生产经营的全部产品的结构以及它们的有机结合方式称为（）。

A.产品结构

B.产品组合

C.产品线

D.项目组合