一、问题的提出中央书记处对首都建设的四项指示要求“把北京建设成为全国最清洁、最卫生。最优美的第一流城市”。目前,北京距离“第一流城市”的要求尚有差距,要成为第一流城市,成为“清洁、优美、生态健全的文明城市”,还需要我们的艰苦努力。现在,西方发达国家从自己所走过的“搞工业,不 First, the issue of the central secretariat’s four directives on capital construction required the Central Secretariat to “build Beijing into the cleanest, most hygienic and most beautiful first-rate city in the country.” At present, there is still a gap between Beijing and the requirements of the “first-rate cities.” To become the top-flight city and become a “clean, beautiful, and ecologically sound, civilized city,” we also need our arduous efforts. Now Western developed countries have gone through their own