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【单选题】
20130242在 Excel 中,下列计算公式属于混合引用的是(42)A.
=A$1+B$1
B.
=A1+B1
C.
=$A$1+$B$1
D.
=$A$l+$B$l/5
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A.
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D.
two days, two-day time
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