并列题名：Investigation of communication in the Yuan period Investigation of communication in the Yuan period 并列题名：Satellite communication in the 5G era 并列题名：Treatise on diplomatic diction in the pre-qin period 并列题名：Research on methods of divination in the pre-Qin period 并列题名：Research on emergency communication in social transition period 并列题名：Art of communication in people's mediation 并列题名：Research on interpersonal communication in the era of big data 并列题名：Market structure and workable competition in the transition period