Study of the water of the Wutai Mountain area during the Qing Dynasty Study on the history of foreign trade during the Qing dynasty A study of the land system in Jiangnan during the Ming dynasty Study on guanke of the hanlin academy in the Ming dynasty a study of the Western Regions during the Tang Dynasty History and culture of the Manao mountain and its surrounding area during the Qing dynasty Study of the Hexi Corridor and the Silk Road during the Ming dynasty Transition of social economy in southeast mountain area during Ming-Qing Dynasty 并列题名：History and culture of the Manao mountain and its surrounding area during the Qing dynasty Study of steles theories in the qing dynasty