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Staff members adjust an LED display board at the National Exhibition and Convention Center (Shanghai), the venue of the second China International Import Expo (CIIE), in Shanghai, east China, Oct. 30, 2019. (Xinhua/Fang Zhe)
Staff members adjust an LED display board at the National Exhibition and Convention Center (Shanghai), the venue of the second China International Import Expo (CIIE), in Shanghai, east China, Oct. 30, 2019. (Xinhua/Fang Zhe)