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例=COUNT(C3:C12)-COUNTIF(C3:C12,">=80")-COUNTIF(C3:C12,"

题目详情
例=COUNT(C3:C12)-COUNTIF(C3:C12,">=80")-COUNTIF(C3:C12,"
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答案和解析
如果你是想计算80分以下和90分以上的人数总和,应该用
=COUNTIF(C3:C12,">=90")+COUNTIF(C3:C12,"