Study of the Division and Administration of Inner and Outer Seas in the Qing Dynasty 并列题名:Study of the Division and Administration of Inner and Outer Seas in the Qing Dynasty Study on the legalization of ethnic policies in the Qing dynasty Study of the tripartite military administration system in the Song Dynasty A study of the land system in Jiangnan during the Ming dynasty Study of the biographies of empresses and concubines in the Tang dynasty Study of the imperial examination system in the Tang dynasty Study on the spatial-temporal evolution and command structure of Guangdong coastal defense in the Ming dynasty Study on the financial administrative system of the three bureaus in the Northern Song Dynasty Changes of land policies and evolution of land rules in the Tang dynasty