改革开放以来,我国国民经济的全面高涨,取得了举世瞩目的成就。但同时也出现了地区产业结构趋同、区域发展失衡、经济运行质量不高等问题。特别是东西部地区发展严重不平稳问题,引起了党和国家的高度重视。“九五”以来,在宏观政策上对中西部地区实行倾斜,促进西部地区经济发展,逐步缩小同东部地区的差距。但是,单靠国家的政策扶持是不够的,还应加强同东部等发达地区的密切合作,得到这些地区的支持,才能加快发展。城市特别是大中城市,是区域 Since the reform and opening up, the national economy of our country has been on an all-round rise and has made remarkable achievements. At the same time, however, there have also been issues such as the convergence of the industrial structure in the region, the imbalance of regional development and the poor quality of economic operation. In particular, the serious instability in the development in the eastern and western regions has aroused the great attention of the party and the state. Since the Ninth Five-Year Plan, central and western regions have been inclined to implement macroeconomic policies to promote economic development in the western region and gradually narrow the gap with the eastern region. However, it is not enough to rely solely on the state’s policy support. Close cooperation with developed areas such as the eastern part of the country should also be strengthened. Only with the support of these regions can we speed up our development. Cities, especially large and medium-sized cities, are the regions