Key = Val(Text1.Text) \10 Text2.Text = ""

i = 1: j = 9: f = False

Do While i <= j And Not f m = (i + j)\ 2

If a(m) Mod 10 = Key Then search = m: f = True

ElseIf a(m) Mod 10 > Key Then i = m + 1

Else

j = m - 1 End If

Text2.Text = Text2.Text + Str(m) Loop

执行完该程序段后，Text2中显示的内容是（  ）

i=l:j=9:n=0

key=Val(Text1,Text)

Do While i<=j

  n=n+1

  m=Fix((i+j) / 2)

  If key=d(m) Then Exit Do            ‘Exit Do表示退出循环

  If key<d(m) Then j=m-1 Else i=m+1

Loop

数组元素d(1)到d(9)的值依次为“7,12,18,25,39,58,61,72,86”｡若该程序段运行结束后，n的值为2，则key的值是（  ）

Dim i As Integer,j As Integer,Key As Integer,m As Integer,s As String

i=1: j=7: s=“”:flag=False

Key=Int(Rnd()* 50)

Do While i <=j And Not Flag

 m=(i+j)\2

 If Key=a(m) Then

  Flag=True

 ElseIf Key < a(m) Then

  j=m-1

 Else

  i=m+1

 End If

 s=s+Str(a(m))

Loop

Text1.Text=s

数组中a(1)到a(7)的值依次为“23，33，45，56，68，77，89”，则Text1 中显示的内容不可能是（  ）

Key = Int(Rnd * 49) * 2 + 1

s = 0: i = 1: j = 10

Do While i <= j

m = (i + j) \ 2

If Key = a(m) Then Exit Do If Key < a(m) Then

j = m - 1: s = 2 * s

Else

i = m + 1: s = 2 * s + 1

End If Loop

数组a(1)到a(10)的值依次为“2,6,7,15,20,24,27,43,52,63”，执行该程序段后，s的值不可能为（  ）