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他坚信老年人照样可以大有作为,所以编题几乎到了痴迷的程度,一天不编题,他就觉得缺少了什么似的睡不好觉。山西省太谷县退休教师要二海,今年71岁。退休10年来,他痴迷于小学数学研究,以惊人的毅力编写数学题,累计
He firmly believes that the elderly can still do a great job, so the topic is almost obsessed with the degree of day without coding, he felt the lack of what sleep well. Taigu County, Shanxi Province, retired teachers to two seas, 71 years old this year. Retired for 10 years, he was obsessed with elementary mathematics research, with amazing perseverance to write math problems, accumulated