A visitor learns about financial big data system during the 2019 China International Fair for Trade in Services (CIFTIS) in Beijing, capital of China, May 29, 2019. (Xinhua/Ren Chao)
People visit 2019 China Int'l Fair for Trade in Services in Beijing
Source: Xinhua| 2019-05-30 07:25:05|Editor: Liangyu
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