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The greatest chance for the existence of extraterrestrial life is on a planet beyond our solar system. The Milky Way galaxy alone contains 100 billion other suns, many of which could be accompanied by planets similar enough to Earth to make them suitable aboded of life. The statement above assumes which of the followings? B. Life cannot exist on other planets in our solar system E. It is likely that life on another planet would require conditions similar to those on Earth 我昨天刚刚开始看逻辑，问的问题可能很傻，请大家见谅。 答案是E，当初我也在B和E之间犹豫，最终选了B。我的问题是B错在哪里呢？我的理解是如果B不是假设，那么“The greatest chance for the existence of extraterrestrial life is on a planet beyond our solar system. ”岂不是就不正确了吗？莫非问题出在原文是the greatest chance，并没有完全否决B？谢谢高手指教！ | 
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发表于 2007-1-4 21:13:00
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