Research on the agricultural economic functions of government in tang dynasty 并列题名：Research on the agricultural economic functions of government in tang dynasty Research on the social and economic history of Beijing in the Ming Dynasty Research on agricultural books of the Song dynasty Research on the agricultural economic effects of county-level financial marketizzation reforms Research on the judicial function of local authorities in Qing dynasty 并列题名：Research on the social and economic history of Beijing in the Ming Dynasty Research on some questions of economic development of Huainan area in the Song dynasty research on the army's tactics and training of late Qing dynasty