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Unlike a hurricane, which can be observed from withn, a tornado is so small that such a study has not been practical. A. that such a study has not been practical B. that studying it that way has not been impratical C. for such studies as this ti have been impractical D. as to not make such a study practical E. as to be impractical of study
答案选A。看了很多帖子,还是不懂E错在哪。。请大家指教!! |
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