某班级学生《C++程序设计》成绩表如下图所示。若学生作业成绩、上机成绩和笔试成绩分别占综合成绩的15%、25%和60%,那么可先在E3单元格中输入( ),再向垂
A '=COUNT(E3:E10,>=60)和=COUNT(E3:E10,<60) B
=COUNT(E3:E10,">=60")和=COUNT(E3:E10,"<60") C
=COUNTIF(E3:E10,>=60)和=COUNTIF(E3:E10,<60) D
=COUNTIF(E3:E10,">=60")和=COUNTIF(E3:E10,"<60")