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Responding to the public’s fascination with-and sometimes undue alarm over-possible threats from asteroids, a scale developed by astronomers rates the likelihood that a particular asteroid or comet may collide with Earth. A. a scale developed by astronomers rates the likelihood that a particular asteroid or comet may B. a scale that astronomers have developed rates how likely it is for a particular asteroid or comet to C. astronomers have developed a scale to rate how likely a particular asteroid or comet will be to D. astronomers have developed a scale for rating the likelihood that a particular asteroid or comet will E. astronomers have developed a scale that rates the likelihood of a particular asteroid or comet that may.
C the best 我觉得如果要用how从句的话，后面应该用形式主语it引出，所以正确的结构应该为 astronomers have developed a scale to rate how likely it will be for a particular asteroid or comet to 所以我认为该题应该选D，虽然当中用for来表示目的可能不是最好，但这并不一定是错的 如，大全442 1. In three centuries—from 1050 to 1350—several million tons of stone were quarried in France for the building of eighty cathedrals, five hundred large churches, and some tens of thousands of parish churches. (A) for the building of eighty cathedrals, five hundred large churches, and some (B) in order that they might build eighty cathedrals, five hundred large churches, and some (C) so as they might build eighty cathedrals, five hundred large churches, and some (D) so that there could be built eighty cathedrals, five hundred large churches, and（A） (E) such that they could build eighty cathedrals, five hundred large churches, and Open to discussion | 
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发表于 2006-6-4 18:04:00
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