２０世纪是科学技术发展突飞猛进的世纪,人类在本世纪所取得的科技成就和创造的物质财富超过了以往任何一个时代。面临世纪之交和千年之交,我们深切地感受到科学技术是第一生产力,是推动经济和社会持续发展的决定性因素,她改变了并将继续改变世界的面貌。一、２０世纪的重大科 The 20th century is a century in which science and technology have made rapid progress. The scientific and technological achievements and the material wealth created by mankind in this century have surpassed any one in the past. Confronted with the turn of the century and the turn of the millennium, we deeply feel that science and technology are the primary productive forces and the decisive factor in promoting sustained economic and social development. She has changed and will continue to change the face of the world. First, the major subjects of the 20th century