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 Sun Yanwu studies in the darkness of his small home, an eight-square-meter house in Duoxiao village, Anding county, Central China's Henan province, Nov 20, 2011. [Photo/Xinhua]  | 
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 Sun Yanwu, 50, writes the weather forecast on a blackboard in Duoxiao village, Anding county, Central China's Henan province, Nov 20, 2011.[Photo/Xinhua]  | 
