research on the change of public space and public life in contemporary China Research on the changes of urban public cultural space in contemporary China Research on the changes of the working class in contemporary China Research on the reform of public services in contemporary Britain Research on the order of social public participation in contemporary China 并列题名：Research on the changes of the working class in contemporary China Research on public welfare spirit and cultivation in contemporary China Research on the academic thought of education in contemporary China Research on the source of law in contemporary China Research on the construction of volunteer service culture in contemporary China