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BEIJING, May 19 (Xinhua) -- Chinese Vice Premier Zhang Gaoli on Tuesday called on governments in the Beijing-Tianjin-Hebei region to improve air quality.

Through improved tax policies and a fairly competitive import and export environment, the government will increase the import volume of consumer goods that are preferred by domestic consumers, the statement said, and will also promote the export of consumer goods that are competitive in the global market.

"Chinese Ambassador Tian Qi and a necessary number of embassy staff are now holding their posts in Yemen," Foreign Ministry spokeswoman Hua Chunying said at a daily press briefing.

Xi also called for expanding South-South Cooperation to strengthen cooperation between countries in Asia and Africa and countries in Latin America and South Pacific region, and improving the mechanism of South-South cooperation to increase the representative and say of developing countries in international system.

The Chinese people supported the various commemorative events held by the European people to celebrate the victory of European theater in WWII in May, while China also plans to hold similar events in September to celebrate the hard-earned victory in the Asian theater, Wang said.