问题
选择题
(2013·安徽蚌埠第一次质检)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
答案
答案：D
选D 考查名词辨析。句意：当今世界找寻信息很容易，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”。