单选题 Through this passage, the author wants to ______.

A、 show us that scientists in the past years have made a lot of misjudgments
B、 praise those scientists who dared to challenge the impossible
C、 emphasize the great potential of the scientific research made by human beings
D、 analyze what is possible and what is impossible through scientific efforts

【正确答案】 C

【答案解析】本文针对科学史上“不可能事情”的不断实现，表明科学研究中存在巨大潜力。A项是本文大意；C项才是作者写本文的意图。