The most crucial problem any economic system faces is how to use its scarce resources.A.pu

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The most crucial problem any economic system faces is how to use its scarce resources.

A.puzzling

B.difficult

C.terrifying

D.urgent

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答案解析

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  • 正确答案:D
    解析:本句意思是“每个经济体系面临的最重要的问题是如何使用稀缺资源。” crucial“至关紧要的”和urgent“紧急的”含义最接近。puzzling“(使)迷惑的”,例如,I have been puzzling about this question for weeks now.我对这个问题已冥思苦想了好几个星期。difficult“困难的”,terrifying“使感到恐怖的”,例如,The tidal wave formed a terrifying wall of water.海啸形成一堵骇人的水墙。