听句子，缩写原文。（）

A．Supermarkets in the inner city and the suburbs are usually owned by the same company.

B．Products in grocery stores are more expensive than those in supermarkets.

C．There is a price difference for the same product even in shops run by the same company.

D．People prefer to shop in supermarkets, which are mostly located in the suburbs, with free parking space.

根据《烟花爆竹安全管理条例》，烟花爆竹生产企业内从事危险工序的作业人员应经过专门技术培训，并经设区的市人民政府安全监管部门考核合格后方可上岗作业。这些危险工序包括（）

A.药物混合

B.造粒

C.装药

D.卷筒

E.搬运