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【单选题】
在Excel 2010工作表的单元格区域B1:B12中,从上向下分别在各单元格中输入了某商店2001年1—12月份的销售额。为了在单元格Ci(i=1~12)中计算单元格区域B1:Bi中的累计销售额,在单元格C1中输入公式( ),然后复制到单元格区域C2:C12即可。A.
=SUM(B1:B12)
B.
=SUM($B$1:$B$1)
C.
=SUM(B1:$B$1)
D.
=SUM(B1:B1)
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