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"During this critical time, we found there is an urgent need for improvements to the transportation infrastructure, namely insufficient air cargo capacity, a shortage of specialized freight airports, the lack of international standard large logistics companies, less efficient multimodal transport, and a deficiency in emergency logistics," Qi said.

"Even though there are amazing innovations nearly every day in the way 3D printers are used in key industries, including automotive, aerospace and medical, we believe that we're still just scratching the surface of the potential for 3D printing as an enabler of digital transformation," said Tim Greene, research director at consultancy IDC.

"Every day you get closer to those particular dates, it gets more worrisome," said Randy Frederick, vice-president of trading and derivatives for Charles Schwab.

"Extremist thoughts have caused a large number of innocent people to suffer," he said, adding that in some places, believers of extremist thoughts even declined to accept medical treatment.

"Even people with outdoor adventure experience dare not explore the depopulated areas without enough preparation," Ma said. "I hope that she's still fine."