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

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

admin2011-01-05  92
问题 The most crucial problem any economic system faces is how to use its scarce resources.
选项 A、puzzling
B、difficult
C、terrifying
D、urgent
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。
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