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城市是人类为自己创造的适于自己生存的物质环境。城市也是国家和地区的政治、经济、文化教育和科学技术的中心,在国家政治生活和经济建设中起着举足轻重的作用。世界城市人口在二十年代只占总人口的10%,到1950年即占28。%,到1981年上升到41%。美国上升到74%,西欧各国人口几乎都占70%以上,高的达80%。苏联的城市人口,已由十月革命前的18%,到1981年上升到65%。目前,我国城镇人口已占全国人口的20%。1985年底,我国设市建制的城市已达324个,人口2.12亿(其中市区人口1.18
City is the material environment that human beings create for themselves to adapt to their own existence. The city is also the center of political, economic, cultural education and science and technology of the country and the region and plays a decisive role in the country’s political life and economic construction. The world’s urban population accounted for only 10% of the total population in the 1920s and 28 in 1950. %, Up to 41% by 1981. The United States has risen to 74%. Almost all of Western Europe’s population makes up over 70% and a high of 80%. The urban population of the Soviet Union rose from 18% before the October revolution to 65% by 1981. At present, China’s urban population has accounted for 20% of the total population. By the end of 1985, China has set up a city of 324 municipalities with a population of 212 million (of which the urban population is 1.18