填空题

A paper, Anatomy(剖析) of a Large ,Scale Social Search Engine, laying out a strategy for social search has been getting a good deal of attention in tech circles. It was written by Damon Horowitz and Sepandar Kamvar of Aardvark, one of several companies (47) on creating social search engines.
Social search (48) to connect people with questions to people who can answer those questions. By contrast, regular Web searches take questions, break them into keywords, and then find Web sites that have the most (49) to these keywords. The idea has been floating around tech circles for years. Yahoo, among others, has tried to develop social search as a way to (50) Google.
The idea has gained impulse with the increased use of Twitter and Facebook, where people (51) on their networks for information, blasting questions to their social networks and, getting useful, personalized (52) . Aardvark and its competitors are trying to create better tools for people with questions to connect to people with answers. Some people think social search has the potential to go beyond Google and (53) change the way people use the Internet.
From a technical standpoint, Aardvark’s task is easier than Google’s. But there are also some (54) short-comings to Aardvark’s approach. Getting answers through social search requires someone else to do something, so it cannot produce the (55) satisfaction that comes from typing something into a Web search box and watching a page of results appear. For Aardvark to be successful, it needs to enlist the participation of (56) answerers.

• A) working
• B) researches
• C) aims
• D) responses
• E) fundamentally
• F) specializing
• G) constant
• H) primarily
• I) competent
• J) significant
  K) relevance L) instant M) relation N) challenge O) rely