We learn from the text that amateur astronomers______.A.began their discovery earlier than

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We learn from the text that amateur astronomers______.

A.began their discovery earlier than the professionals

B.tend to be the leaders in the area of astronomy

C.have some advantages in discovering new comets

D.established some theories on how comets come into being

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答案解析

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  • 正确答案:C
    解析:对业余天文爱好者的阐述出现在文章的第三段,其中最后一句谈到“业余爱好者在发现新彗星的竞赛中也处于更领先的地位,他们的小望远镜因为焦距短,从而比蒙特维尔森天文台的大望远镜更占优势。”由此得出C是正确的。