论文部分内容阅读
三次产业是根据社会生产活动历史发展的顺序对产业结构的划分。产品直接取自自然界的部门称为第一产业;对初级产品进行再加工的部门为第二产业;为生产和消费提供
Three industries are based on the history of social production activities in the order of the division of industrial structure. Products that are taken directly from nature are referred to as primary industries; those that reprocess primary products are secondary industries; provided for production and consumption