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"China has embraced a robust development of both e-commerce and related logistics, and we have quite a lot of experience to share with other countries in this regard. But to do this, we need not only to lead in the quantity of business, but more importantly, to have a well regulated and healthy market," Ouyang said.

"China has the potential to top the United States to carry the largest passenger population," Han said.

"But the areas of known volcanic activity in Greenland are several hundred miles away. Also, a volcano should have a clear positive magnetic anomaly, and we don't see that at all," said MacGregor.

"But the public so far has sided in polling with the demonstrators and the need for police reform, so the president risks falling further out of step with the public in an election year," Jillson said.

"By far it is the earliest fossil crayfish found in the world," said Shen, who has scrutinized and researched hundreds of fossil crayfish unearthed in Liaoning province, together with his colleagues.