Recycle economy and development of resource-based cities Fiscal policy for sustainable development of resource-based cities Research on the sustainable development of resource-based citie 并列题名：Research on the sustainable development of resource-based citie 并列题名：Fiscal policy for sustainable development of resource-based cities Research on sustainable development of resource-based cities in China Study on sustainable development of resource-based cities in China Competence reconstruction and improvement of the resource-based cities 并列题名：Study on sustainable development of resource-based cities in China Evolution and transformation of resource-based cities