A Earthquake’s Forecast B Historical Records of Earthquakes C Intensities of Earthquakes D Cause of Earthquakes E Indicatio

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问题 A  Earthquake’s Forecast
B  Historical Records of Earthquakes
C  Intensities of Earthquakes
D  Cause of Earthquakes
E  Indications of Earthquakes
F  Damaging Earthquakes
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选项

答案A

解析 本段介绍了科学家为预报地震所做的一些工作。
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