单选题：What do experts say about the earth’s fuel reserves?

题目分类：理工类
题目类型：单选题
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题目内容：

What do experts say about the earth’s fuel reserves? A．The earth，s fuel reserves will be accessible for the next 50 year
B．There will soon be an energy crisi
C．Conventional reserves will soon become inaccessibl
D．Fuel demand will declin

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