如果１４５０年德国人古登堡革（Ｇｕｔｅｎｂｅｒｇ发明的 第一台活字印刷机是人类信息传播技术的一场革命，那么１９６９年美国研制开发的互联网技术便是又一场革命。比起印刷媒体（报纸、杂志、书籍）来，网络媒体具有互动性、多样性、快捷性、个人性的特点，可以把大量的信 If the German Gutenberg invented in 1450, the first typewriter, a revolution in the human information technology, Internet technology invented by the United States in 1969 was another revolution, compared to the print media Newspapers, magazines, books) come online media with interactive, diverse, fast, personal characteristics, you can put a large number of letters