A.SUM訂購數(shù)量)B.SUM([訂購數(shù)量])C.SUM=(訂購數(shù)量)D.=SUM([訂購數(shù)量])
A.系統(tǒng)窗體B.功能窗體C.導航窗體D.集成窗體
A.報表視圖B.設計視圖C.布局視圖D.數(shù)據(jù)表視圖