可以表示商务网站访问率的有：

A、日均注销会员数

B、日均访问的独立客户数

C、日均访问企业上网数

D、日均访问的独立IP数

Shopping has always been something of an impulse activity, in which objects that catch our fancy while strolling are immediately bought on a whim. Advertisers and sellers have taken advantage of this fact, carefully positioning inexpensive but attractive items on paths that we are most likely to cross, hoping that our human nature will lead to a greater profit for them. With the dawn of the Internet and its exploding use across the world, the same tactics apply.Advertisers now place "banners", links to commercial web sites decorated with attractive pictures designed to catch our eyes while browsing the webs, on key web sites with heavy traffic. They pay top dollar for the right, thus creating profits for the hosting web sites as well. These actions are performed in the hopes that during the course of our casual and leisurely web surfing, we"ll click on that banner that sparks our interest and thus, in theory, buy the products advertised.Initial results have been positive. Web sites report a huge inflow of cash, both from the advertisers who tempt customers in with the banners and the hosting web sites, which are paid for allowing the banners to be put in place. As trust and confidence in Internet buying increases and information security is heightened with new technology, the volume of buying is increasing, leading to even greater profits.The current situation, however, is not quite as optimistic. Just as magazine readers tend to unconsciously ignore advertisements in their favorite periodicals, web browsers are beginning to allow banners to slip their notice as well. Internet users respond to the flood of banners by viewing them as annoyances, a negative image that is hurting sales, since users are now less reluctant to click on those banners, preferring not to support the system that puts them in place. If Internet advertising is to continue to be a viable and profitable business practice, new methods will need to be considered to reinvigorate the industry.With the recent depression in the technology sector and slowing economy, even new practices may not do the trick. As consumers are saving more and frequenting traditional real estate businesses over their Internet counterparts, the fate of Internet business is called into question. The coming years will be the only reliable indication of whether shopping on the World Wide Web is the wave of the future or simply an impulse activity whose whim has passed.Notes:on a whim 心血来潮surf v. 冲浪in theory 在理论上，顺理成章hosting 访问率高的call... into question质疑，对...... 提出疑问It can be learned from the first paragraph that Internet advertising
A．has taken the place of more traditional methods of advertising.B．is one of the most effective ways to make profits on the web.C．is paralleling advertising methods in traditional business settings.D．seeks to tempt customers through impulse shopping methods.

下面关于信息化的说法正确的是（）
A.信息化的意义只体现在对新兴产业的推动上
B.信息化是一个渐进的过程，其具体的内涵也大致相同
C.企业信息化指的是企业上网工程
D.使用波特拉可以对社会信息化程度进行测度，但反映内容不够全面

为加速首都电子信息网络建设，帮助传统企业进入电子商务，尽早与国际接轨，北京市有关部门推出了分四步走的“上网工程”，下列属于第三阶段的是（)
A.为企业提供专线接入服务和服务器托管服务，快速建立企业主页、发布企业信息和产品信息
B.对具有资质、有理念的各类服务商进行认证，授予企业上网工程合作伙伴的称号
C.为各类企业提供完善的电子商务解决方案，帮助企业全面实现电子商务
D.向企业发放中国电信的电子商务认证证书