Research on the coast defense of Shandong in the Ming and Qing Dynasties 并列题名：Research on the coast defense of Shandong in the Ming and Qing Dynasties Research on the defense of liaodong county during Qin and Han dynasties Research on the court defense system in Tang dynasty Research on the social language life in Ming and Qing dynasties 并列题名：Research on the defense of liaodong county during Qin and Han dynasties Research on the school of Zhu Xi in Liangzhe during the Song and Yuan dynasties a study on the legal system of foreign trade during the ming and qing dynasties research on landscape prose in Tang and Song dynasties Research on foreign related laws in Macao of the Ming and early Qing dynasties