1.人造地球卫星的速度是8千米/秒,相当于宇宙飞船速度的40/57.宇宙飞船的速度是多少?2.在通常的情况下,体积相等的冰的质量比水的质量少1/10现在有一块重9kg的冰,如果有一桶水的体积和这块
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![1.人造地球卫星的速度是8千米/秒,相当于宇宙飞船速度的40/57.宇宙飞船的速度是多少?2.在通常的情况下,体积相等的冰的质量比水的质量少1/10现在有一块重9kg的冰,如果有一桶水的体积和这块](/uploads/image/z/1854995-59-5.jpg?t=1.%E4%BA%BA%E9%80%A0%E5%9C%B0%E7%90%83%E5%8D%AB%E6%98%9F%E7%9A%84%E9%80%9F%E5%BA%A6%E6%98%AF8%E5%8D%83%E7%B1%B3%2F%E7%A7%92%2C%E7%9B%B8%E5%BD%93%E4%BA%8E%E5%AE%87%E5%AE%99%E9%A3%9E%E8%88%B9%E9%80%9F%E5%BA%A6%E7%9A%8440%2F57.%E5%AE%87%E5%AE%99%E9%A3%9E%E8%88%B9%E7%9A%84%E9%80%9F%E5%BA%A6%E6%98%AF%E5%A4%9A%E5%B0%91%3F2.%E5%9C%A8%E9%80%9A%E5%B8%B8%E7%9A%84%E6%83%85%E5%86%B5%E4%B8%8B%2C%E4%BD%93%E7%A7%AF%E7%9B%B8%E7%AD%89%E7%9A%84%E5%86%B0%E7%9A%84%E8%B4%A8%E9%87%8F%E6%AF%94%E6%B0%B4%E7%9A%84%E8%B4%A8%E9%87%8F%E5%B0%911%2F10%E7%8E%B0%E5%9C%A8%E6%9C%89%E4%B8%80%E5%9D%97%E9%87%8D9kg%E7%9A%84%E5%86%B0%2C%E5%A6%82%E6%9E%9C%E6%9C%89%E4%B8%80%E6%A1%B6%E6%B0%B4%E7%9A%84%E4%BD%93%E7%A7%AF%E5%92%8C%E8%BF%99%E5%9D%97)
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