Abstract:After more than 40 years of unremitting efforts，China’s theoretical research on bet365 ohio promo code economics has experienced economic problems in bet365 ohio promo code、bet365 ohio promo code Problems in the Economy、Economic Issues in bet365 ohio promo code、Four stages of bet365 ohio promo code problems in economics，Formed a highly original "1+2+1" methodological system of bet365 ohio promo code economics with Chinese characteristics，In recent years, the relationship between materials and information has become even more important、Distributed bet365 ohio promo code supply、Generalized subsidies、Urban bet365 ohio promo code、Deepen the system reform、New progress in comprehensive benefit evaluation and other fields。current，New challenges in building a sustainable bet365 ohio promo code system，New tasks to solidly promote high-quality development，Accelerate the construction of a powerful bet365 ohio promo code country、Digital China’s new mission，Jointly promote the theoretical research on China’s bet365 ohio promo code economics to achieve integrity and innovation in the exploration of practical problems，Contribute Chinese wisdom to promote the development of bet365 ohio promo code economics and even economics。

　　Keywords:bet365 ohio promo code Economics with Chinese Characteristics “1+2+1” Methodology System Space-time Economic Analysis Sustainable bet365 ohio promo code System

　　AuthorLin Xiaoyan，Professor, School of bet365 ohio promo code and Management, Beijing Jiaotong University；Li Hongchang，Professor, School of bet365 ohio promo code and Management, Beijing Jiaotong University；Li Mingzhen，Ph.D. candidate at School of bet365 ohio promo code and Management, Beijing Jiaotong University。（Beijing 100044）