按钮Command1，则在文本框Text2中显示该金额的大写，程序运行界面如下图所示:

i = 1 ：j = n

Do While i + 1 < j

    m = (i + j) \ 2

    If a(m + 1) - a(m) > a(m) - a(m - 1) Then

    Else

    End if

Loop

Label1.Caption="相邻两个元素的最大差值是" + Str(a(j) - a(i)) 

上述程序段两个方框处的语句分别为（  ）

t = "": i = 1 : j = 9 : f = False

Do While i <= j And Not f

    m = (i + j) \ 2

    t = t + Str(m)

  If a(m) = key Then

        t =t +“#”

        f = True

    ElseIf a(m) > key Then

        i = m + 1

        t = t + "→"

    Else

        j = m - 1

        t = t + "←"

    End If

Loop

数组元素 a(1)到 a(9)的值依次为“68、56、52、36、32、28、26、22、20”，执行该程序段，t的值可能是（  ）

Dim n As Integer, i As Integer, left As Integer, right As Integer, m As Integer

Dim a(1 To 10) As String, t As String, key As String n = 6

a(1) = "35": a(2) = "20": a(3) = "18": a(4) = "8": a(5) = "274": a(6) = "47" For i = 1 To n - 1

For j = n To i + 1 Step -1

If a(i) < a(j) Then

t = a(i): a(i) = a(j): a(j) = t

End If

Next j

Next i

key = Text1.Text

left = 1: right = n

Do While left <= right

m = (left + right) \ 2

If a(m) = key Then Exit Do

If a(m) < key Then right = m - 1 Else left = m + 1

Loop

若在文本框 Text1 中输入“212”，则程序运行结束后，m 的值为（  ）