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.
答案为啥是C，我觉得D很好呀
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发表于 2018-8-2 21:53:22
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