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The Chang'e-4 mission will be a key step in revealing the mysterious far side of the moon, most of which remains unknown.

"While it is understandable to conduct necessary security scrutiny, it should not become a tool for advancing protectionism and creating new invisible barriers," Hua said at a daily press briefing, also expressing opposition to discriminatory practices.

Noting achievements in Party building since the 19th CPC National Congress that included the "sweeping victory" in fighting corruption, Xi said the Party is now "radiating with more vitality in the new era."

Qatar attaches importance to ties with China, Tamim said, vowing to promote cooperation in the Belt and Road Initiative, as well as areas such as trade, sports and tourism.

BEIJING, Jan. 12 (Xinhua) -- China will continue its efforts to widen market access for foreign investment and build a better business environment, Minister of Commerce Zhong Shan has said.