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岁月如歌，２０世纪转瞬就要成为过去。处在这世纪之交，回眸本世纪，真是感慨万千。在２０世纪，科学技术取得了飞速发展。相对论、量子论、控制论、宇宙演变学说、生物基因等一批理论的提出，标志着科学研究迈上了新台阶。以电子信息、生物技术和新材料为支柱的一系列高新技
Song of the world, the 20th century will soon be the past. At the turn of the century, looking back at this century, it is full of emotion. In the 20th century, science and technology have made rapid progress. Theory of relativity, quantum theory, cybernetics, evolutionary theory of the universe and biological genes put forward a series of theories, marking a new stage in scientific research. A series of high technologies based on electronic information, biotechnology and new materials