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"Chinese mainland people are used to paying for things with their phones, so it will be like home for them," Wei said.

"China's experience so far shows that a full economic recovery will take time," Tilton said in an interview with CNBC on May 4.

"Closer international exchanges and cooperation are a necessity for the existence and further prosperity of human civilization. China, France and all others that support the development of a community with a shared future should not hesitate to carry out wider and deeper political, economic, technical, cultural and educational cooperation in a coordinated way. They must also foster more sustainable and balanced development and promote world peace.

"Considering the dense crowds and limited space of the airport, any violent clashes may lead to mass casualties," he said. "Such a tactic is really despicable."

"China's auto industry has developed a lot while the current tax policy for used cars was made 15 years ago," he said.