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10. Meteorite explosions in the Earth’s atmosphere as large as the one that destroyed forests in Siberia, with approximately the force of a twelve-megaton nuclear blast, occur about once a century. The response of highly automated systems controlled by complex computer programs to unexpected circumstances is unpredictable.
Which of the following conclusions can most properly be drawn, if the statements above are true, about a highly automated nuclear-missile defense system controlled by a complex computer program? A. Within a century after its construction, the system would react inappropriately and might accidentally start a nuclear war. B. The system would be destroyed if an explosion of a large meteorite occurred in the Earth’s atmosphere. C. It would be impossible for the system to distinguish the explosion of a large meteorite from the explosion of a nuclear weapon. D. Whether the system would respond inappropriately to the explosion of a large meteorite would depend on the location of the blast.
E E. It is not certain what the system’s response to the explosion of a large meteorite would be, if its designers did not plan for such a contingency.
If the defense system designers did not plan for the contingency of large meteorite explosions, such explosions would, from the system’s perspective, be unexpected. The system’s response to such explosions is consequently unpredictable. E expresses this inference and is thus the best answer.
A cannot be inferred since it is consistent with the stated information that no meteorite explosion will occur within a century. B cannot be inferred since there is no information to suggest that meteorite explosions in the atmosphere would destroy the system. C cannot be inferred since it is consistent with the stated information that an appropriately designed nuclear defense system might be able to distinguish nuclear from meteorite explosions. D cannot be inferred since there is no information to suggest that the location of blasts would determine the appropriateness of defense system’s response. 原文的意思我能概括出来，“和摧毁西伯利亚森林一样巨大的卫星爆炸（插入语用个数字说明了一下到底有多么地大，相当于一个怎样的核爆炸）一个世纪会发生一次。由电脑程序控制的高度全自动的系统，对预料之外事件的发生是无法预测的。” 我可能翻译得不够好，但看了好几次了，那几句话能表达出来的信息量也就这么点了吧？ 但是请看答案A和C，OG给出的解释，都说他们不是inferre的信息，原因是他们 consistent with the stated information. A. Within a century after its construction, the system would react inappropriately and might accidentally start a nuclear war./ C. It would be impossible for the system to distinguish the explosion of a large meteorite from the explosion of a nuclear weapon. 请牛人帮我解释一下，原文中哪里有和这些表述一致的，而且是Stated information呢？  | 
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发表于 2008-1-6 23:01:00
