城市是社会主义社会的社会经济和地区组织的最重要形式。到第十一个五年计划初期,我国的科技和生产潜力已大部分集中于城市。城市首先是人口迁居的特殊形式。从1940年到1980年,城市居民的比重从33%增长到63%,即增长近一倍。与此同时,百万人口以上的大城市数量也大大增加了。例如,1940年这类城市只有莫斯科和列宁格勒,到1981年已经有20 Cities are the most important form of socio-economic and regional organization of socialist society. By the beginning of the eleventh five-year plan, most of our country’s science and technology and productive potential have been concentrated in the cities. The city is first and foremost a special form of migration. From 1940 to 1980, the proportion of urban residents increased from 33% to 63%, an increase of nearly double that of urban residents. In the meantime, the number of metropolitan cities above a million people has also increased significantly. For example, in 1940 there were only Moscow and Leningrad, with 20 in 1981