Finding information in today’s world is easy. The is how you can tell if the inf

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

试题答案

C

本题考查名词用法辨析。challenge“挑战”符合句意。而ability“能力”，competition“竞争”，knowledge“知识”均不合题意。