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十大最荒诞科技谣言：外太空没有地心引力？(10)

2010-08-09 09:10:27 【大 中 小】

十大最荒诞科技谣言：外太空没有地心引力？

谣言十：进化总是向更高级别的物种发展的

    我们都知道自然选择会淘汰那些劣等和不健康的基因，但实际上还是会有一些不完美的有机形态在此过程中保留了下来。

(来源:中青在线-中国青年报)

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地心引力
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