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（ ），再向垂直方向拖动填充柄至E10单元格，则可自动算出这些学生的综合成绩。若要将及格和不及格的人数统计结果显示在B11和E11单元格中，则应在B11和E11中分别填写（ ）。
问题1选项
A.=B3*15%+C3*25%+D3*60%
B.=_B$3*15%+C$3*25%+D$3*60%
C.=SUM(B3*15%+C3*25%+D3*60%)
D.=SUM(B$3*15%+C$3*25%+D$3*60%)
问题2选项
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")
正确答案及解析
正确答案
解析
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