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Soil______is a natural process. It becomes a problem when human activity causes it to occur much faster than under natural condi
Soil______is a natural process. It becomes a problem when human activity causes it to occur much faster than under natural condi
admin
2013-02-16
55
问题
Soil______is a natural process. It becomes a problem when human activity causes it to occur much faster than under natural conditions.
选项
A、preservation
B、abrasion
C、erosion
D、eruption
答案
C
解析
各项的意思是:preservation维护,保护;abrasion磨损处,擦伤处;erosion(水,风等的)侵蚀,腐蚀;eruption爆发,喷发,erupt into laughter突然大笑。
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考博英语
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