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词型变化:名词复数形式 : amedeo avogadroes

OK, today we're going to talk about the mole. 今天我们来谈一下摩尔。 Now, I know what you're thinking: I know what a mole is, 我知道你现在在想:我知道摩尔是什么, it's a small furry creature that digs holes in the ground

发表于:2018-12-18 / 阅读(128) / 评论(0) 分类 TED演讲教育篇

No one knew about his principle, because Avogadro himself was a retiring fellow, he worked alone, corresponded very little with fellow scientists, published few papers, and attended no meetings but also it was because there were no meetings to attend

发表于:2019-01-29 / 阅读(142) / 评论(0) 分类 万物简史

Fortunately more sober types were at work elsewhere. In 1808, a dour Quaker named John Dalton became the first person to intimate the nature of an atom (progress that will be discussed more completely a little further on), and in 1811 an Italian with

发表于:2019-01-29 / 阅读(137) / 评论(0) 分类 万物简史