Residential areas are seen in this file photo taken on May. 25, 2009 in Shenmu County, northwest China's Shaanxi Province. What the coal-rich county with 400,000 people offers is not only free medical service to its people, but also 12 years of free education for all children, better housing for farmers and urban poor, and poverty relief. [Xinhua]

Primary school students perform dancing in this file photo taken on December 22, 2009 at a local school in Shenmu County, northwest China's Shaanxi Province. What the coal-rich county with 400,000 people offers is not only free medical service to its people, but also 12 years of free education for all children, better housing for farmers and urban poor, and poverty relief. [Xinhua]