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城市化的高速发展及城市人口的迅速增长,对城市的管理、特别是城市的安全提出了全新的挑战。城市运行安全已经被党和政府提高到维护群众利益,保障
The rapid development of urbanization and the rapid growth of urban population have posed entirely new challenges to the management of cities, especially the security of cities. Urban operation safety has been raised by the party and the government to safeguard the interests of the masses and safeguard