70-year study on oracle bone inscription in contemporary China 60-year study on oracle bone inscription in contemporary China 并列题名：70-year study on oracle bone inscription in contemporary China 并列题名：60-year study on oracle bone inscription in contemporary China Research on ideology transition in contemporary China Study on world economics in contemporary China 并列题名：Study on world economics in contemporary China Brief history of oracle-bone inscriptions in China Poverty alleviation in contemporary China Sociological study on labor issues in contemporary China