【单选题】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
网考网参考答案:C
网考网解析:
[考点] 词义辨析
[解析] challenge意为“挑战,艰巨任务,难题”。ability意为“能力”;competition意为“竞赛”;knowledge意为“知识”。
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