17. GWD-26-Q17: 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 是这题吧 -- by 会员 XYXB (2012/8/13 16:18:19)
对!!!!!!!!!就是这题,楼主秒选的C |