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最佳答案:=COUNTIF(c2:c500,">=80")/COUNTIF(c2:c500,">=0")或者=COUNTIF(c2:c500,">=80")/COUNT(
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最佳答案:#include#include#includemain(){float a ,b,c,delta,x1,x2,y1,y2;do{printf("please
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最佳答案:假设总分在E列,则公式为:=SUMIF(E:E,">="&LARGE(E:E,10))测试通过!