题目内容
These special programs continually look for new information and update the databases used by search services.
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When you enter a keyword or phrase into a search engine the results display as a list of these.
This type of e-commerce often resembles the electronic version of the classified ads or an auction.
Online banking is an example of what type of e-commerce?
Which of the following is not one of the three basic components of cloud computing?
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