Study on the Zhaibao in Sichuan province during Ming and Qing Dynasties a study on the legal system of foreign trade during the ming and qing dynasties Study on the group of Xin'an doctors in Ming and Qing Dynasties Study on the satirical fiction in the Ming and Qing dynasties Study on the development of Zhongyuan towns during the Ming and Qing Dynasties Study on the opera troupe of family in Ming and Qing dynasties Study of the acculturation strategies of kaifeng jews during the ming and qing dynasties a study on the temples of Three teachings in Zezhou during the Ming and Qing dynasties 并列题名：Study on the development of Zhongyuan towns during the Ming and Qing Dynasties The development of commodity economy in Shandong Province during Ming and Qing dynasties