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你是否想过化学元素是由什么组成的，MIT教授给你正确开启_EP1。
Ep1 Introduction and Overview Everything around us is made from different elements: carbon, silicon, iron, and all the other elements from the Periodic Table. But have you ever wondered where all these elements came from?
MIT 化学教授给你讲述：化学元素的宇宙起源1/11
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