He has devoted himself to mathematics teaching for 30 years, but still sticks to the three foot platform when suffering from uremia 2018-07-2616:16:00 Source: Tan Yongshan, male, born in November 1967, Jiangsu Civilization Network, teacher of Tianshan Middle School, Gaoyou High tech Zone (Songqiao Town), Yangzhou City. Tan Yongshan, Shanghai Normal University
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