Meteorite explosions in the Earth's atmosphere as large as the one that destroyed forests in Siberia, with approximately the force of a 12-megaton nuclear blast, occur about once a century.The response of highly automated systems controlled by complex computer...

历史版本-2 由jane1102更新于2012-05-21 18:42:14

看题目 M爆炸产生的能量相当于能够毁坏SIBERIA的森林的能量，相当于12-m 核爆炸的能量，一个世纪发生一次。被复杂的计算机程序控制的高度自动系统的response是不可预测的。问如果以上的statement为真，能够推出一下哪个结论？

看选项 A within a century after its construction，文中说的是一世纪发生一次，根本没提到过                   construction。杀。

         B the system would be destroyed，文中没提到过系统的毁灭。杀。

         C 文中没提到过nuclear war，再者，这两者的比较也没提到过，杀。

         D没有提到过location，杀。一定要避免无中生有。

         E 原文主旨的改写，not certain 对应 unpredictable。正确。

A. Within a century after its construction, the system would react inappropriately and might accidentally start a
nuclear war. (不可预知)
B. The system would be destroyed if an explosion of a large meteorite occurred in the Earth’s atmosphere.(2者无必然联系)
C. It would be impossible for the system to distinguish the explosion of a large meteorite from the explosion of a
nuclear weapon.(这个文章没提到)
D. Whether the system would respond inappropriately to the explosion of a large meteorite would depend on
the location of the blast.(这个文章没提到)
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. The response of highly automated systems controlled by complex computer programs to unexpected
circumstances is unpredictable. 可比性推出E正确!