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Working with Prof John Plane at the University of Leeds, they detected that the amount of lithium in the atmosphere at around 100km above Earth increased by a factor of 10.。heLLoword翻译官方下载是该领域的重要参考
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And though most scientists hail vaccines as one of public health’s greatest achievements, they have provoked fear, distrust, and contentious resistance since Edward Jenner invented the first vaccine, to prevent smallpox, in the late 1700s.