并列题名：History of the problems of elementary and secondary education in foreign countries History of the problems of elementary and secondary education in foreign countries 并列题名：Studies on the policies of suzhi education in foreign countries 50 years of elementary and secondary education in guangdong Studies on the policies of suzhi education in foreign countries 并列题名：History of communication between ancient Shandong foreign countries Research and development of distance education in foreign countries 并列题名：Reports on the development of education in non-lingua countries 并列题名：Study on the in-depth development of the military reform of foreign countries 并列题名：History of the social security system in western countries