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Customers buy snacks at a self-service convenience store in Shenyang, capital of northeast China's Liaoning Province, Dec. 12, 2017. Customers can pay bill via Wechat or Alipay. (Xinhua/Long Lei)
Customers buy snacks at a self-service convenience store in Shenyang, capital of northeast China's Liaoning Province, Dec. 12, 2017. Customers can pay bill via Wechat or Alipay. (Xinhua/Long Lei)