在Excel2003中，A1到E5单元格中的值如下图所示，若在A8单元格输入函数“=COUNTIF(A1:E5,">=85")-COUNTIF(A1:E5,">90")”，按回车键后，则A8单元格中的值为()。
A、21B
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Anxietycan________withchildren’sperformanceatschool.
Heinsuredhiscar________hehadanaccident.
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Newdriversarefarmore________tohaveaccidentsthanexperienceddrivers.
