Which of the following titles is most appropriate to the passage? The French geophysicists’ study is different from currently

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问题 Which of the following titles is most appropriate to the passage?
  The French geophysicists’ study is different from currently prevailing theories in______.

选项 A、its identification of the origin of the earth’s magnetic field
B、the way the earth’s magnetic intensity is measured
C、its explanation of the shift in the earth’s polarity
D、the way the earth’s fluctuation rhythm is defined

答案C

解析 题目询问法国地球物理学家的研究与当今流行的理论的区别。根据文章第三段:当今的理论已能识别地球两极发生转化这一现象,但是地球两极是怎样发生转化和为什么会发生转化,却是一个引起广泛争议的问题,而法国科学家在这—点上提出了自己的观点。C项选择,解释了地球两极的移动,与题意相符。
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