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Original usage refers to rivers that ______ . Entering rivers by ______ , phosphates and nitrates as fertilizers can result in
Original usage refers to rivers that ______ . Entering rivers by ______ , phosphates and nitrates as fertilizers can result in
admin
2009-08-19
47
问题
Original usage refers to rivers that ______ .
Entering rivers by ______ , phosphates and nitrates as fertilizers can result in eutrophication.
选项
答案
rainwater runoff and groundwater seepage
解析
该段第一句指出用磷酸盐和硝酸盐做肥料能够引起其他问题。第二句就举例说明了所导致的问题。该句中的Entering rivers via rainwater runoff and groundwater seepage, these chemicals can cause eutrophication直接给了导致超营养作用的是Entering rivers via rainwater runoff and groundwater seepage,其中by=via。
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0
大学英语六级
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