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 years.
B．There will soon be an energy crisis.
C．Conventional reserves will soon become inaccessible.
D．Fuel demand will decline.

参考答案：

答案解析：

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分类：理工类题型：单选题

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