单选题：Man's research on earthquake forecast at present is to _____

题目分类：理工类
题目类型：单选题
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题目内容：

Man's research on earthquake forecast at present is to __________。 A．reduce the loss from earthquake disasters
B．lower the frequency of earthquakes
C．release the energy that causes earthquakes
D．analyze the relationship between different earthquakes

参考答案：

答案解析：

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