问题
单项选择题
最大地面浓度占标率的计算公式Pi=(Ci÷Coi)×100%，其中Ci指( )。
A．采用估算模式计算出的第i个污染物的最大地面浓度
B．第i个污染物的最大地面浓度占标率
C．第i个污染物的环境空气质量标准
D．采用估算模式计算出的第i个污染物的平均地面浓度
答案
参考答案：A
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最大地面浓度占标率的计算公式Pi=(Ci÷Coi)×100%，其中Ci指( )。
A．采用估算模式计算出的第i个污染物的最大地面浓度
B．第i个污染物的最大地面浓度占标率
C．第i个污染物的环境空气质量标准
D．采用估算模式计算出的第i个污染物的平均地面浓度
参考答案：A
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