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12th Beijing Int'l Sci-Tech Expo Opens

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A working staff shows a visitor how to drive a mini three-wheel vehicle driven with electric power at the 12th Beijing International Science and Technology Exposition held in Beijing, on May 20, 2009.

A working staff shows a visitor how to drive a mini three-wheel vehicle driven with electric power at the 12th Beijing International Science and Technology Exposition held in Beijing, on May 20, 2009. [Xinhua]

 

A Chinese visitor makes a test writing on an electron screen at the 12th Beijing International Science and Technology Exposition held in Beijing, on May 20, 2009.

A Chinese visitor makes a test writing on an electron screen at the 12th Beijing International Science and Technology Exposition held in Beijing, on May 20, 2009. [Xinhua]

 

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