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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
admin
2009-04-23
43
问题
Nowadays, scientists still have not made huge progress on the research of earthquake because they have not fully understood what cause earthquakes.
When an earthquake with level 7 in Richter scale rating is reported it means that its amplitude is ______ times stronger than a level 6 earthquake.
选项
答案
10
解析
由题干中的amplitude和level定位到第五个小标题下第2段末句That is,the wave amplitude in a level 6 earthquake...a level 9 earthquake.此处需填入数词性成分,基于Richter scale的数字是按10倍增长的,文中所述6级地震波振幅比5级地震增加10倍,同样从7级地震到9级地震其幅度增加100倍,因此很容易得出本题结论。
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0
大学英语六级
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