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A staff member presents balance training equipment at the pavilion of the First Hospital of Jilin University during the 12th China-Northeast Asia Expo in Changchun, northeast China's Jilin Province, Aug. 24, 2019. The five-day expo themed on "enhancing mutual trust and cooperation to create beautiful prospects for Northeast Asia" opened Friday in the city of Changchun. Technologies and appliances related to 5G attracted many visitors. (Xinhua/Zhang Nan)
