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Finding information in today’s world is easy. The ____ is how you can tell if the information you get is useful or not.

A. ability B. competition  C. challenge  D. knowledge

 

C

句意: 查找信息在当今世界上是很容易的事, 所面临的挑战是你如何分辨出你所得到的信息是否有用。ability能力; competition竞争; challenge挑战; knowledge知识。只有C项符合题意。

 

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(D)
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