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 ![]() Children hug the principal at a school for hearing-impaired children in Yan'an, Northwest Chin's Shaanxi province, May 24, 2011. [Photo/Xinhua] 
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 ![]() Children show the "V" sign before having lunch at a school for hearing-impaired children in Yan'an, Northwest Chin's Shaanxi province, May 24, 2011. [Photo/Xinhua]  | 
