时下，网络正日益渗透到社会生活的各个方面，甚至可以说正在改变着人们的生存方式。目前全世界已经有１亿多用户上了网，１９９７年网上交易（电子商务）营业额近３０亿美元，预计到２００１年将超过３０００亿美元。有识之士都看到了网上蕴藏着的无限商机。一些精明的商... Nowadays, the network is increasingly penetrating into all aspects of social life, and can even be said to be changing the way people live. At present, there are more than 100 million users on the Internet in the world. In 1997, the turnover of online transactions (e-commerce) was nearly 3 billion U.S. dollars and it is estimated that more than 300 billion U.S. dollars will be reached by 2001. People of insight have seen unlimited online business opportunities. Some smart business ...