在世界各国中，美国的城市化程度是相当高的，目前仅有３％的人从事农业生产。但美国的城市化进程并没有走到尽头，其形式已不表现在城市人口的增长上，而是表现在城市规模的膨胀上，即向郊区的扩展上。学者们称此为“城市的郊区化”现象。城市的人口、产业不断由市中心迁... In all countries in the world, the degree of urbanization in the United States is quite high. At present, only 3% of the people are engaged in agricultural production. However, the process of urbanization in the United States did not come to an end. Its form has not been reflected in the growth of the urban population, but rather in the expansion of urban scale, that is, expansion to the suburbs. Scholars call this “urban suburbanization” phenomenon. The city’s population, industries continue to move from the city center ...