Study on the development of Zhongyuan towns during the Ming and Qing Dynasties 并列题名：Study on the development of Zhongyuan towns during the Ming and Qing Dynasties a study on the legal system of foreign trade during the ming and qing dynasties Diffusion and development of catholic in Hu-Guang Province during the Ming and Qing Dynasties a study on the temples of Three teachings in Zezhou during the Ming and Qing dynasties Study of the acculturation strategies of kaifeng jews during the ming and qing dynasties 并列题名：Diffusion and development of catholic in Hu-Guang Province during the Ming and Qing Dynasties Study on the Zhaibao in Sichuan province during Ming and Qing Dynasties Study on the development of Zhongyuan economic zone in China 并列题名：Study of the acculturation strategies of kaifeng jews during the ming and qing dynasties