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Recalling that the world economy is under downward pressure, with surging protectionism and unilateralism making things doubly difficult. Against this situation, Liu said it is all the more important that China and the UK advocate free trade, oppose protectionism and promote open cooperation.

To address complex and grave international situations, and reform, development and stability tasks faced by China, the leading Party members' groups were urged to closely follow the CPC Central Committee with Xi at the core in terms of thinking, political orientation and action.

Liu Yongqi, general manager of Sino-Crystal, another Henan-based company, said it now produces between 2 million and 3 million carats a year, over half of which are for jewelry.

"The traffic jams on the roads during the holiday must be worse," Liao said when having his ticket checked at the railway station in Guangdong's Zhongshan. "The expressways back home must be more crowded than the railway station."

The district has attracted over 120 homestay brands, with the reservation rate of some brands reaching 90 percent for the Lunar New Year, said Zheng Aijuan, deputy director of Yanqing's tourism commission.