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"Cyberspace is not a lawless place, and every step taken online should comply with the law and social morality including business innovation," said Shen Yi, a professor with Fudan University in Shanghai.

"Every trade negotiation entails hard bargains, but both sides have to make concessions that improve the well-being of the partner country compared to a no-deal outcome," Hufbauer said.

"Facing the possibility of mechanical transmission (of the fungus) by dirty containers, the measures of extraction, cleaning and disinfection of the containers in the port of Santa Marta have been taken and checkpoints have been installed for this purpose," said Cardenas.

"Every year, second-hand booksellers collect textbooks at a price of about 4,000 yuan a ton, which is more than twice the price of ordinary waste paper, but the number of people who come to collect second-hand books is still few," Zhao Dehua said.

"Eliminating the restrictions on joint ventures and cooperation in oil and gas exploration and development, plus introducing multi-market entities (including foreign companies) in domestic oil and gas resource exploration and development, will enhance market activity, create a fair and open access environment, and help further enhance the exploration and development efforts and technological advances of domestic oil and gas resources," said Yang Xiaoping, chairman and president of BP China.