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"There are concerns about the development of international trade, about trade barriers being erected in some cases rather than being removed; there is a move throughout the world on concerns about the impact of globalization," the policy chief warned.

BEIJING, July 18 (Xinhua) -- The commander of the People's Liberation Army Navy Wu Shengli has stressed that China and the United States have key roles in ensuring peace and stability in the South China Sea, and cooperation between the navies of the two countries is "the only correct option."

The aircraf have completed a series of training missions, including air defense early warning maneuvers, air combat and island patrolling, in a complicated electromagnetic environment, he said.

In an effort to better respond to the rise of emerging economies, the IMF needs to improve the representativeness of the membership in the institution, and serve all the 189 members of the "IMF family," Lagarde said when answering a question from Xinhua.

"With China's rise, it is only logical that the country plays a bigger role on the global stage," said Xu Guangjian, deputy director of the School of Public Administration and Policy at Renmin University.