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"It was normal preparation work to ensure a successful first launch," Tian said, adding that it caught up with the launch window.

Zhang made the remarks at a conference on the first census of national geographic conditions. The census began in 2013 and finished in early 2016.

Poland is also willing to, in the light of its re-industrialization process, expand cooperation with China in the areas of infrastructure, industrial parks and technology, and deepen cooperation within the framework of 16+1 cooperation, Szydlo added.

Fidel Castro died late Friday at the age of 90 in Cuba's capital city of Havana after leading the Caribbean country for nearly half a century before stepping down in 2006 for health reasons.

RIGA, Nov. 6 (Xinhua) -- Chinese Premier Li Keqiang on Saturday held conversations respectively with Lithuanian and Slovakian prime ministers, calling for joint efforts to promote bilateral cooperation and relations.