Option Base 1Dim arr() As IntegerPrivate Sub Form_Click()  Dim i As Integer, j As Integer  ReDim arr(3, 2)  For i = 1 To 3    For j = 1 To 2      arr(i, j) = i * 2 + j    Next j  Next i  ReDim Preserve arr(3, 4)  For j = 3 To 4    arr(3, j) = j + 9    Next j  Print arr(3, 2) + arr(3, 4)End Sub程序运行后，单击窗体，显示的结果为（    ）。