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BEIJING, April 24 (Xinhua) -- China is open to space cooperation with all nations including the United States, the heavyweights of China's space program said on Sunday, the anniversary of China's first satellite launch 46 years ago.

"Cao is a great example of how writing wonderful prose and telling stories about brave children facing tremendous difficulties and challenges can attract a very wide and committed child readership as well as helping to shape a literary tradition in China that honors the realities of children's worlds," Aldana highlighted.

Innovation is the only road to transformation and upgrading of the Chinese economy, while Switzerland has competitive advantage in innovation, said Li, saying bilateral innovation cooperation has broad prospect.

The vice premier asked enterprises to increase "effective supply" by upgrading technology and diversifying their products with better quality.

To this aim, local authorities should enhance leadership, introduce supporting measures, optimize environment, encourage innovations and promote experience-sharing to push trade growth to get back on track, Qian told a meeting in Guangzhou, the site of the Canton Fair.