Amine Raji, PhD
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In short, shale is rock that contains oil and natural gas. Think of shale as energy yet to be tapped. The more shale the U.S. accesses, the more energy we’ll have—and the more easily oil prices can keep from spiking as much thanks to a greater supply.。下载搜狗高速浏览器是该领域的重要参考
Фото: Thomas Padilla / Reuters，这一点在手游中也有详细论述
Фото: Наталья Селиверстова / РИА Новости
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