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Visitors views an ecological farm house model featuring earthquake resistance and energy saving during the China International Energy Saving, Emission Reduction and New Energy Science and Technology Expo at the Beijing Exhibition Center in Beijing, capital of China, March 22, 2009. [Chen Xiaogen/Xinhua]
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![Visitors views an ecological farm house model featuring earthquake resistance and energy saving during the China International Energy Saving, Emission Reduction and New Energy Science and Technology Expo at the Beijing Exhibition Center in Beijing, capital of China, March 22, 2009. [Chen Xiaogen/Xinhua]](http://images.china.cn/attachement/jpg/site1007/20090324/000cf1a48b7f0b3279020a.jpg "Visitors views an ecological farm house model featuring earthquake resistance and energy saving during the China International Energy Saving, Emission Reduction and New Energy Science and Technology Expo at the Beijing Exhibition Center in Beijing, capital of China, March 22, 2009. [Chen Xiaogen/Xinhua]")
