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"This is a pioneering work in China-U.S. high-tech cooperation, which is on a voluntary basis. This shows the open attitudes of both sides," Li said. He expected win-win results in this cooperation.

Talent is the foundation and core element of innovation, said Xi, noting that constructors and successors of socialism with Chinese characteristics, rather than bystanders or opponents, should be trained through education.

Import from China fell by almost 20 percent from the first three months of last year, it added.

Also on Saturday, Meng met with Uzbek Prime Minister Abdulla Aripov. They co-chaired the fourth meeting of the committee for China-Uzbekistan intergovernmental cooperation.

"The question of Rakhine State is rooted in a nexus of complex historical, ethnic and religious factors. Many of the differences and antagonisms have been building up over a long time. There is no quick fix," Wu Haitao, China's deputy permanent representative to the United Nations, told the Security Council.