Frontiers of research on international trade in services Study of new regulations on international trade in services Generality of international trade in services Review of international trade in services Strategy and oractice of unternational trade in services 并列题名:Study of new regulations on international trade in services 并列题名:Generality of international trade in services Liberalization of international trade in services 并列题名:Strategy and oractice of unternational trade in services Research on international trade subject