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機器人：你知道為什麼雞蛋放在鹽水裡會浮起來呢？ A、鹽水的密度大 B、鹽水的密度小 C、是魔術的一種手法 答案是A，你答對了嗎？我們來看影片的解說。
#科學 #能源 #氣候 #科技 #自然
分級:
片長:
發音:
發行:
導演:
分級: 普遍級
片長: 1 min
發音: 華語
發行: 2018-01
導演: 安偉民
片長: 23 min
發行: 2013-01
導演: 導演:瑪拉歐斯
片長: 24 min
發行: 2015-06
導演: 翰星傳播製作
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