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"But the key is managing a balance between good user performance and price. That demands both technology and patience," Xiang said.

"But public housing is not the best answer to deal with housing problems after construction," Yan said. "The government may introduce programs allowing tenants to first rent and then purchase, but at low prices."

"China is ready, along with the rest of the international community, to support and assist African countries in combating terrorism and extremism, and continue our contributions to peace, stability and development in Africa," Zhang Jun, China's permanent representative to the United Nations, said on Wednesday at a Security Council open debate.

"China is a huge e-commerce market, with millions of parcels delivered every year. Our technologies can help express companies better distribute parcels when consumers are not at home," Hong said.

"But now we see policies that attempt to close the door and resort to unilateralism," he said. "And to succeed in today's world, the best choice is to take a win-win approach. But now we see policies that are so strongly influenced by the zero-sum mentality as well as policies that regard other people's success as their losses."