【单选题】
Today, the world wide web can be used both to search information and to make it{{U}} (31) {{/U}}to others. Information{{U}} (32) {{/U}}on webpages is viewed by{{U}} (33) {{/U}}of browser. The sources of information linked in this way can be located on any computer{{U}} (34) {{/U}}is also part of the weB、Each information source may be linked to an{{U}} (35) {{/U}}number of other webpages. Hypertext and hyper- links allow users{{U}} (36) {{/U}}as receivers of in- formation to{{U}} (37) {{/U}}from one source of in- formation to another, deciding for themselves which information they wish to{{U}} (38) {{/U}}.to their browser and which links they want to{{U}} (39) {{/U}}The addresses of{{U}} (40) {{/U}}can be found by using the hundreds of search engines Which provide{{U}} (41) {{/U}}to databases which hold information on them. Once a webpage has been found, hyperlinks may point{{U}} (42) {{/U}}other places of interest on the weB、Addresses of webpages also appear in other more{{U}} (43) {{/U}}media, such as magazines, newspapers and television programs, and on posters. Webpages, in their{{U}} (44) {{/U}}facilitate access to information made available by other{{U}} (45) {{/U}}of media, for example, collections held in libraries. Most webpages offer interactive opportunities which go{{U}} (46) {{/U}}merely allowing visitors freedom as to when and how they visit a page.{{U}} (47) {{/U}}can be kept formal via a questionnaire which can be filled{{U}} (48) {{/U}}, or informal by providing an address for e-mail or even by installing a digital guest book for comments left for other users to reaD、{{U}} (49) {{/U}}all web- pages are protected so that unauthorized visitors cannot make unsolicited changes to them, it is also possible to{{U}} (50) {{/U}}access to pages on the internet to those holding a passworD、
A．hyperlinks
B．information
C．webpages
D．databases
网考网参考答案：C
网考网解析：[解析] 由下文出现丁四次webpage(s)可知，webpages是此处所填词的原词复现，故答案为[C]。
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