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"China's most important accomplishment since the 18th CPC National Congress rests on the success in strategic policymaking, which constitutes the essential reason for China's achievements," Hu said.

"China should stick to its established goal of further opening-up in a timely manner," he said, adding that a higher level of opening-up will effectively promote trade and investment and facilitate further economic integration between the world's two largest economies.

"Cooperation is necessary in this aspect. You know smart cars are difficult for one carmaker to develop no matter how big, and carmakers will feel a little worried if they rely too much on platforms of tech giants like Google or Baidu."

"China's smartphone market is declining because consumers are holding on to their phones for longer, operators like China Mobile have reduced their smartphone subsidies, and device makers such as Huawei have launched fewer 'wow' models to tempt shoppers back into retail stores. Some consumers are finding their smartphones 'good enough" and are pausing on upgrading," Neil Mawston, executive director at Boston-based Strategy Analytics, said in an email.

"China's catering industry has shown increasing awareness of food safety, and displayed some unique business models, thanks to its advanced development of digitalization," said Connell Zhang, China president of Ecolab.