The passage gives a general description of ancient climate history. The need for energy to run machines has steadily increased

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问题 The passage gives a general description of ancient climate history.
The need for energy to run machines has steadily increased since the ______.

选项

答案Industrial Revolution

解析 The need for energy to run machines has steadily increased since the ______.词汇线索为Machines和need for energy,定位后找到文章末段首句,since后内容为答案:Industrial Revolution。
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