Nowadays, scientists still have not made huge progress on the research of earthquake because they have not fully understood what

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问题 Nowadays, scientists still have not made huge progress on the research of earthquake because they have not fully understood what cause earthquakes.
Scientists find that on our planet earthquakes are much more frequent where the plates ______.

选项

答案meet

解析 由题干中的much more frequent定位到第二个小标题下末段末句Earthquakes are much more common...;再由where the plates定位到本段首句Where these plates meet...此处需填入动词性成分。题于中的earthquakes are much more frequent与原文中的earthquakes are much more common属同义转述;原文末句指出along fault lines“沿着断层线”是地震的多发区域,而首句指出断层就是 plates meet“板块相遇”的地方,故答案为meet。
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