Dim a(l To 100) As String

Private Sub Commandl_Click()

  Dim c As Integer, t As String, ans As String

  s = Textl. Text

  k = Val(Text2. Text)

  ans =“”

  For i = 1 To Len(s) - k - 1

    c = c + 1

    a(c) = Mid(s, i, 1) + Mid(s, i + k + 1, 1)

    If check(c) Then

      ans = ans + a(c) + "，"

    Else

      c = c - 1

    End If

  Next i

  Text3. Text = ans

End Sub

Function check(k As Integer) As Boolean

  Dim i As Integer

  check = True

  For i = 1 To k - 1

    If a(i) = a(k) Then check = False: Exit For

  Next i

End Function

若该程序段执行后，在文本框Text1中输入的字符串长度不超过10，文本框Text2中输入的值在0到8范围内（输入输出都不包括双引号本身），下列说法不正确的是（  ）

i = 1

 Do While i <= 6

    t = Int(Rnd * 10) + 1

    If t Mod 2 = i Mod 2 Then a(i) = t : i = i + 1

Loop

For i = 1 To 2

   k = 1

   For j = 1 To 6 - i * 2

     If a(j) * k > a(j + 2) * k Then

       t = a(j) :  a(j) = a(j + 2) :  a(j + 2) = t

     End If

     k = -k

   Next j

Next i

执行该程序段后，数组元素a(1)到a(6)的值可能是（  ）