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China is a partner of cooperation for the United States, Obama told Xi, while noting that the United States supports China's reform and opening-up efforts.
The two countries also agreed to jointly establish a technical cooperation center as both sides have huge cooperation potential in hi-tech fields, innovation and transformation of scientific achievements.
China would like to work more closely with Russia and for the countries to open further to each other, jointly withstand risks and challenges and seek common revitalization, Xi said in his meeting with Putin.
Liu said China and Russia have seen continuous expansion of common interests and cooperative areas in the Asia Pacific region.
Social security program varies in different regions and there is a huge gap between rich eastern regions and less developed western ones.
来源：资阳报