《宇宙生命之谜》阅读题答案
以下是小编整理的《宇宙生命之谜》阅读题答案,本文共8篇,希望能够帮助到大家。 《宇宙生命之谜》阅读题答案 太阳系中唯一还可能存在生命的星球是火星。火星与地球有不少相似之处:地球自转一-圈是23小时56分4秒,火星自转一圈是24小时37分;地球自转轴与公转轨道平面有66度34分的倾角,而火星的倾角约66度1分,所以火星和地球昼夜长短相近,而且也有四季更替。更有趣的是,1877年,意大利的一位天文学家
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