focused on the relationship between brecht and the Chinese theater in the later 20th century 从辩证到综合：布莱希特与中国新时期戏剧：focused on the relationship between brecht and the Chinese theater in the later 20th century Study of the relationship between Tang and Silla in the mid-seventh century Study of the relationship between Chinese scholars and art since twentieth century 并列题名：Study of the relationship between Tang and Silla in the mid-seventh century a study on the relationship between modern Chinese poetry creation and painting a study on the relationship between the Soviet Union and Israel in the early cold war 并列题名：Study of the relationship between Chinese scholars and art since twentieth century Lectures on the relation between law and public opinion in England during the nineteenth century Research on the relationship between the CPC members and the masses in the diversified inererst pattern