目前与因特网相连的国家与地区已达152个(含我国),与因特网相连的网络已达4.1万个。截止1997年,计算机网络在全世界范围,尤其是在北美地区空前普及,全世界上网人数已达7000多万。因特网已成为全球最大的信息资源基地。它是人类巨大的财富,它的内容非常广泛,几乎涵盖了人类活动的方方面面。但是,现代化的高效率的信息服务在 At present, there are 152 countries and regions connected to the Internet (including China), and the number of networks connected to the Internet has reached 41,000. By 1997, computer networks were becoming more popular all over the world, especially in North America. The number of people accessing the Internet in the world reached more than 70 million. The Internet has become the world’s largest information resource base. It is a huge human wealth, its content is very broad, covering almost all aspects of human activities. However, modern and efficient information services are available