亚洲91视频,国产91网,久久久久久久久久久久久久久国产,亚洲一区二区三区日本久久九,亚洲日本久久,国产精品久久久99,亚洲欧美一区二

US EUROPE AFRICA ASIA 中文
China / China

Chinese teens wow Geneva with inventions

(chinadaily.com.cn) Updated: 2011-04-07 14:58

Chinese teens wow Geneva with inventions

Wen Zicong, from Guangzhou Zhiyong High School, displays his dual-use cart, which can also be used as a chair, in Geneva, Switzerland, on April 6, 2011. [Photo/Xinhua]

 
 

Chinese teens wow Geneva with inventions

Junior high students from Taiwan display a phototaxis inductor, which can automatically be drawn to light and be used with a solar battery, in Geneva, Switzerland, on April 6, 2011. [Photo/Xinhua]

Highlights
Hot Topics

...