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

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

admin2009-04-23  100
问题 Nowadays, scientists still have not made huge progress on the research of earthquake because they have not fully understood what cause earthquakes.
After a thorough investigation of what happens during the earthquake, scientists use ______ to rate the actual damage.
选项
答案the Mercalli criteria(scale)
解析 根据题意和during the earthquake定位到第五个小标题下第4段后两句...find out what occurred during the earthquake．Once they have a good idea of the range of damage，they use the Mercalli criteria...此处需填入名词性成分。题干中a thorough investigation of what happens during the earthquake与原文中的talk to...during the earthquake属同义转述。故use的宾语就是答案。
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大学英语六级

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