a study of policy on the secondary education of England in the twentieth century 从冲突到融合：20世纪英国中等教育政策研究：a study of policy on the secondary education of England in the twentieth century a study of the New York school of poetry in the mid-twentieth century History of Chinese theatre in the twentieth century Oretical study of exploration theatre in the twentieth century Study on the historical education of China in 20th century a brief history of southern literati life in the twentieth century Study on the evolution of the international pattern and the relations of major countries in the twentieth century Urban history on African Americans in the twentieth century a study on the Chinese secondary schools in Sabah during the last half century