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题库 / Prep2007E1-SC-78
The cottontail rabbit population in Orange County, California, has increased unchecked in recent years as a result of the removal of the native fox population and the clearing of surrounding woodlands.
years as a result of the removal of
years as a result of removing
years, resulting from the removing of
years, which is a result of removing
years, which is a result of the removal of
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与后面的the clearing of 并列，后面是名词clearing，前面也应该用名词removal而不是动名词removing
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