单词:giga-becquerels
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Scientists List Four Ways to Capture Carbon, Limit Rising Temperatures A new report suggests four simple ways to remove carbon dioxide from the atmosphere. Carbon dioxide is among the gases linked to the increase in the Earths temperature. The Nation
发表于:2018-12-16 / 阅读(76) / 评论(0)
2018年VOA慢速英语(十一)月
The nineteenth century held one last great surprise for chemists. It began in 1896 when Henri Becquerel in Paris carelessly left a packet of uranium salts on a wrapped photographic plate in a drawer. When he took theplate out some time later, he was
发表于:2019-01-29 / 阅读(125) / 评论(0)
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