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人类进入21世纪，世界正在发生复杂而深刻的变化，面临着诸多挑战。新的形势和新的任务更加要求我们必须树立新的发展观，从人类与自然协调和谐、环境与发展相互促进的高度，以更大的决心、更坚实的步伐，走可持续发展之路。一、循环经济的发展理念及其产生背景循环经济的概念?
As humanity enters the 21st century, the world is undergoing complex and profound changes and faces many challenges. The new situation and new tasks further require that we must establish a new concept of development, take the path of sustainable development from the perspective of coordinated harmony between mankind and nature, mutual promotion of environment and development, and greater determination and solid progress. First, the concept of the development of circular economy and its background The concept of circular economy?