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At the same time, the scarcity of tourism resources in the frozen continents push the tours at high prices.  Each polar tour costs from around ,000 (70,000 yuan) to 880,000 yuan.

At present, Tencent holds 20.14 percent of Meituan-Dianping. If the estimates are true, Tencent will own 10 percent of shares after the IPO is launched.

At the Alibaba exhibition booth, a big screen demonstrated how ambulances and fire engines in the east China city of Hangzhou avoid gridlock and all red lights turn green as they approach with the aid of "City Brain," an artificial intelligence platform aimed at improving city management.

At the event, the company showcases its latest products such as electric excavators. "Here we want to take the opportunity to show that Volvo is, from a global perspective, a leading manufacturer of equipment, but also taking the lead in terms of new technologies," Gurander said.

At the national level, the European Commission said each member state should complete a national risk assessment of 5G network infrastructures by the end of June 2019. At the European Union level, member states should exchange information and complete a coordinated risk assessment by Oct 1, 2019. On that basis, member states would agree on a set of mitigating measures that can be used at national level.