中国是世界上自然地理、经济社会、人口资源差异最大的国家之一,其中地区差距主要表现为东西部发展水平差距大。特别是自改革开放以来迅速扩大的沿海和内地的差异,城乡差距则集中反映为长期的城乡二元结构所导致的城市和农村之间在发展上的显著不平衡。中国存在的地区差距和城? China is one of the countries with the greatest differences in natural geography, economic society, and population resources in the world, among which the regional disparity is mainly manifested in the large gap between the development levels of the eastern and western regions. In particular, the gap between the coastal areas and the inland areas that has been rapidly expanded since the reform and opening up was reflected in the urban-rural gap, which is reflected in the long-term urban-rural dual structure and the significant imbalance between urban and rural development. Regional gaps and cities in China?