题目内容
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[主观题]
2015年12月英语四级考试卷一仔细阅读第56题答案
What do welearn about Silicon Valley from the passage?
A) Its success is hard to copy any where else.
B) It is the biggest technology hub in the US.
C) Its fame in high technology is incomparable.
D) It leads the world in information technology.
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