2. 外语
  3. What CANNOT be inferred from the first paragraph? Now scientists have found in the past few years ______.

What CANNOT be inferred from the first paragraph? Now scientists have found in the past few years ______.

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问题 What CANNOT be inferred from the first paragraph?
Now scientists have found in the past few years ______.
选项 A、the exposure of DNA to the public is unnecessary
B、the tiny cell in DNA is a neat little machine
C、man knows nothing about DNA
D、man has much to learn about DNA
答案D
解析 推断题。由文章第四段可知，30年前人们将DNA的发现称为生物革命，刚开始时，人们认为DNA细胞很简单，但随着时间的推移，人们发现它其实极为复杂，由此推断，人们还需要进一步研究，所以D正确。
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大学英语六级

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