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"Congratulations to Mei Xiang and @NationalZoo! This is the 3rd cub I have welcomed as Chinese ambassador. For 20 years, Meixiang and her kids have been adorable witnesses of China-US cooperation & a constant source of joy for the Americans. A precious gift at this unusual time," China's ambassador to the US Cui Tiankai wrote in a tweet.

"Clinical trials can be reduced for medical devices that treat rare diseases. For those that have been approved to be marketed in a foreign market, they will be able to gain marketing approval in Shanghai with collateral agreements," read the document.

"Chinese cities performed very well with great potential to improve further in years to come given their relentless drive to modernize," said James Shepherd, managing director, Greater China Research at Cushman & Wakefield.

"China will also supply comprehensive telecommunication services and narrow the digital gap and promote global cooperation," Chen said.

"China will be widening the business spectrum for foreign financial institutions and also expand the cooperation areas of Chinese and foreign financial markets," Xi said, addressing more than 2,000 politicians, business and media leaders and scholars at the four-day event, which started Sunday in South China's Hainan province.