跨入新世纪，人类将逐步迎来一个知识经济时代。半个世纪以来，我们亲身经历了人类社会的伟大变革。科学与技术的融合，加速了产业技术革命与人类文明化的进程；信息技术革命，迅速地改变着人类认识世界与改造世界的能力。过去半个世纪，尽管世界总人口由２５亿增长到了６０亿? Into the new century, mankind will gradually usher in a knowledge economy era. For half a century, we have personally experienced great changes in human society. The integration of science and technology has accelerated the industrial technological revolution and the process of human civilization. The revolution in information technology has rapidly changed the ability of humankind to understand and transform the world. Over the past half century, although the total population of the world has grown from 2.5 billion to 6 billion?