a study on the developments and changes of contemporary Western political parties 衰落还是转型：当代西方政党的发展变化研究：a study on the developments and changes of contemporary Western political parties Study on the theory of equality in contemporary western political philosophy recent developments in contemporary western historical theories 并列题名：Study on the theory of equality in contemporary western political philosophy Documents of contemporary world political parties 并列题名：Documents of contemporary world political parties a study on the development and social implicationsof building services a study on the development mode of social credit system a study on the development of international legal order