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近几年来，笔者经常收到入选各种大型“文库”、“论文集”的通知书。通知书称：您的大作“××××……”已被评选为××××大会×等奖，收入“××××论文集”，请寄×××元成本费即能得到获奖证书，可作为晋升专业技术职称的证明；对有入选文章的作者及所在单位，优惠供
In recent years, I often received a large number of selected “library”, “Proceedings,” the notice. The notice said: Your masterpiece “×××× ......” has been selected × × × × × × × × × × Proceedings, income × × × × Proceedings, please send × × × element cost that will be awarded Certificate, can be used as a certificate of professional titles promoted; selected articles for the author and the unit, discount for