题目内容

美国科学家：有超过数千计的较大流星有规律地穿越地球的运行轨道。尽管它们的其中之一和地球相撞的可能性非常小，我们也应该尽我们所能来降低这种可能性，因为一旦相撞而产生的灾难性后果是无法想象的。避免这种灾难的最好办法是让流星的轨道偏离。目前可知的使流星偏离轨道的仅有办法是用放置在空间站的核武器去轰击它们。美国科学家费尽心思说那么多话想得到如下哪一项结论

A. 核技术是可以信赖地被应用到阻止巨大自然灾难发生的仅有技术。
B. 核武器应该在太空中布防。
C. 迄今还没有发生由流星和地球相撞而引发的大灾难。
D. 数千计的流星穿越地球轨道仅仅引发几率非常之低的流星和地球间的相撞事件。
E. 除了保卫地球避免流星撞击之外，目前还没有什么可以让人接受使用核武器来解决问题的想法。

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