Finding information in today's world is easy.The ________ is how you can tel
l if the information you get is useful or not.
A．knowledge B．ability
C．competition D．challenge
Finding information in today's world is easy.The ________ is how you can tell if the information you get is useful or not.
A．knowledge B．ability
C．competition D．challenge
D [考查名词辨析。句意：当今世界找信息很容易，但困难的事是你如何辨别你所获得的信息是否有用。knowledge“知识”；ability“能力”；competition“竞赛”；challenge: a new or difficult task“挑战；艰巨任务”。]