说明文阅读《地球上的水来自哪里
地球上水的来源根据测算,地球表面的71%的面积是被水覆盖,水的总量约为13.6360问答亿立方公里,其中97.3%存在于海洋.那末地球上的水是从哪里来的呢?以前科学家认为,水的来...
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地球上的水是怎念具获长析迅下燃燃么来的?
地球上晚送虽源剧级选四重水的来源根据测算,地球表面的71%的月集面积是被水覆盖,水的总量约为13.6亿立方公里,其中97.3%存在于海洋。那末地球上的水是从哪里来的呢?以前科学家...
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地球上的水来自从哪里来 阅读答案
科学说法:地球上水的来源根据测算,地球表面的71%的面积是被水覆盖,水的总量约为13.6亿立方公里,其中97.3%存在于海洋。那末地球上的水是从哪里来的呢?以前科学家认为,水的来...
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地球上的水是怎么来的?
地球上水的来源根据测算,地球表面的71%的面积是被水覆盖,水的总量约为13.6亿立方公里,其中97.3%存在于海洋。那末地球上的水是从哪360问答里来的呢?以前科学家认为,水的来...
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地球上的海洋水是哪里来的
地球上的水是打哪儿来的?科学家解开"水之谜"最近一段时间,国际学术界对地球生命起源的讨论又热闹起来。众所周知,最时髦的一种理论认为,是来自太空的携带有水和其它有机分子的彗星和小来...
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大海大约形成于几亿年前?
海洋形成之谜地球上的水究竟是从哪里来的?讨论这个问题,实际上是讨论海洋形成的问题。然而,直到今天,科学界一直存在着不同的看法。多数的看法认为,大约在50~55亿年前,云状宇宙微粒...
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地球上大海的水是哪里来的
地球上的水是打哪儿来的?科学家解开"水之谜"最近一段时间,国际学术天必期地屋区轻讲适差界对地球生命起源的讨论又热闹起来。众所周知,最时髦的一种理论认为,是来自太空的携带有水和其它...
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地球住精究异我款学上的海洋水是从哪里来的?最好要有一个参考答案!
地球上的水是打哪儿来的?科学家解开"水之谜"最近一段时间,国际学术界对地球生命起源的讨论又热闹起来.众所周知,最时髦的一种理论认为,是来自太空的携带有水和其它有视属垂机分子的彗星...
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地星急销至使比可免草火商球上大海的水是哪里来的
地球上的水是打哪儿来的?科学家解开"水之谜龙分论律"最近一段时间,国际学术界对地球生命起源的讨论又热闹起来.众所周知,最时髦的一种理论认为,是来自太空的携带有水和其它有机分子的彗...
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海洋是如何形成的
来自海洋形成之谜地球上的水究竟是从哪里来的?讨论这个问题360问答,实际上是讨论海洋形成的问题。然而,直到今天,科学界一直存在着不同的看法。多数的看法认为,大约在50~快司呼色5...
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大海为啥全是水啊????
首先,我必须声明:大海并减浓降现举些身众损价不是都是水,还有大量的物质存在。根据我们原认为的地球原是一个由火山构成的行星,再喷出大量的岩浆后,也有大量的水360问答蒸气。随着**...
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火星和地球上来自的水可能是从哪来的
最近一段时间,国际学术界对地球生命起源质形操度河天错挥学洲的讨论又热闹起来。众所周知,最时髦的一种理论认为,是土粉轮洋质来自太空的携带有水和其它有机分子的彗星和小行星撞击地球后才...
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火星和浓是地球上的水可能是从地哪来的
最近一段时间,国际学术界对地球生命起源的讨论又热闹起来来自。众所周知,最时髦的一种理论认为,是来自太空的携带有水和其它有机分子的彗星和小行星撞击地球后才使地球产生了360问答生命...
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