2. 外语
  3. Today, the world wide web can be used both to search information and to make it 【C1】______ to others. Information 【C2】______ on

Today, the world wide web can be used both to search information and to make it 【C1】______ to others. Information 【C2】______ on

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问题      Today, the world wide web can be used both to search information and to make it 【C1】______ to others. Information 【C2】______ on webpages is viewed by 【C3】______ of browser. The sources of information linked in this way can be located on any computer 【C4】______  is also part of the web. Each information source may be linked to an 【C5】______ number of other webpages. Hypertext and hyper- links allow users 【C6】______ as receivers of in- formation to 【C7】______ from one source of in- formation to another, deciding for themselves which  information  they  wish  to 【C8】______ .to their browser and which links they want to 【C9】______ The addresses of 【C10】______ can be found by using the hundreds of search engines Which provide 【C11】______ to databases which hold information on them. Once a webpage has been found, hyperlinks may point 【C12】______ other places of interest on the web. Addresses of webpages also appear in other more 【C13】______ media, such as magazines, newspapers and television programs, and on posters. Webpages, in their 【C14】______  facilitate access to information made available by other 【C15】______ of media, for example, collections held in libraries. Most webpages offer interactive  opportunities  which  go 【C16】______ merely allowing visitors freedom as to when and how they visit a page. 【C17】______  can be kept formal via a questionnaire which can be filled 【C18】______ , 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. 【C19】______ all web- pages are protected so that unauthorized visitors cannot make unsolicited changes to them, it is also possible to 【C20】______ access to pages on the internet to those holding a password.  
【C19】
选项 A、As
B、Although
C、If
D、When
答案B
解析 根据前后两分句的句意，可知它们之间存在着转折关系，而选项A 引导转折关系从句时，需用倒装形式，故B 为答案。
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