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問題 機器人：你知道下列哪一種引擎是既環保，又不會排放廢氣呢？ A、柴油引擎 B、氫氣引擎 C、汽油引擎 答案是B，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: 48 min
發音: 華語
發行: 2014-12
導演: 臺灣電視公司
片長: 24 min
發行: 2013-01
導演: 導演:瑪拉歐斯
片長: 1 min
發行: 2018-01
導演: 安偉民
發行: 2017-06
導演: 美國國家地理頻道 製作
片長: 22 min
發行: 2015-06
導演: 翰星傳播製作
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