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以下程序的功能是求"x ^ 2 + 5"表达式的值,其中x的值由文本框Text0输入,运算的结果由文本框Text1输出。 Private Sub Command0_Click() Dim x As Integer Dim y As Long Me.Text0 = x y = x * x + 5 Me.Text1 = y End Sub 运行上述,出现了错误,错误的语句是( )。 A. Dim x As Integer B. Me.Text0 = x C. Me.Text1 = y D. Dim y As Long