單項(xiàng)選擇題

Excel中,在數(shù)值型單元格A1中輸入(),然后按回車鍵,則A1顯示數(shù)值為5。
(1)"=sum(2+3)"
(2)"2+3"
(3)"sum(2,3)"
(4)"=sum(2,3)"

A.(1)正確
B.(1)(4)正確
C.(2)(3)正確
D.(1)(2)(3)(4)全正確

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