Study of the eunuch system of the Ming Dynasty 并列题名：Study of the eunuch system of the Ming Dynasty Study on the marching system of the Tang Dynasty Research on the reward system of the Qing Dynasty Study of foreign tributary system in the Tang dynasty Study on the banishment system in Qing dynasty Study of the imperial examination system in the Tang dynasty 并列题名：Research on the reward system of the Qing Dynasty The eunuchs in the ming dynasty 并列题名：The eunuchs in the ming dynasty