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The alert is forecast to last one day and people should take precautions and reduce outdoor activity, said a statement issued by the city's air pollution emergency response office.

When the driver gets on the car, the system tells them to bring an umbrella if it is going to rain. It can select routes based on real-time road conditions and the driver's habits, and can even help order and pay for a take-away coffee.

Foreign Ministry spokesperson Geng Shuang said at a regular press briefing Wednesday that Chinese State Councilor Yang Jiechi will attend the opening ceremony of the meeting and deliver a speech.

"We hope the two countries' tire industries strengthen dialogue and communication, effectively manage and control trade disputes, and maintain an open and fair trade environment for the good of the people of China and the U.S.," he said.

The platform will provide PPP consulting, planning, bidding and supervision services for local governments, to facilitate private capital to join PPP projects, said Ding Huamei, president of the exchange.