For i= 1 To 49

  j=1:a(j)=a(j)+1

  Do While a(j)=5

    a(j)=0

    j = j + 1

    a(j) = a(j) + 1

  Loop

Next i

数组a中各元素初始值均为0，该程序执行后，数组a中各元素之和为（  ）

s = 1

For i = 2 To 10 Step 3

  s = s + i

Next i

则该程序段执行后，变量s和i的值分别是（  ）

c = 0 :i = 1

Do While i <=6

  k = i

  For j = i + 1 To 7

    If a(j)<= a(k) Then k = j

  Next j

  If a(i) <> a(k) Then

   t = a(i): a(i) = a(k): a(k) = t

   c = c + 1

  End If

  i = i + 1

Loop

数组元素a(1)到a(7)的值依次为“9,9,8,16,45,9,78”。该程序段执行后，变量c的值是（  ）

a(1) = 1

 For i = 2 To 6

 Randomize

 a(i) = a(i - 1) + Int(Rnd * 5 + 1)

 If a(i) Mod 2 = 1 Then

   a(i) = a(i) \ 2 + 1

 Else

   a(i) = a(i) / 2

 End If

 Next i

执行程序后，a数组各元素可能是（  ）

Key = Val(Text1.Text)

i = 1: j = 100

Do While i <= j

  m = (i + j) \ 2

  If  (1)  Then m = m - 1

  Sum = (2) 

  If Key = Sum Then Exit Do    ‘Exit Do表示退出循环

  If  (3)  Then

   i = m + 2

  Else

   j = m - 2

  End If

Loop

If i > j Then Text2.Text = "没有找到!" Else Text2.Text = Str(m)

实现该功能,则上述程序段3个方框处的表达式分别为（  ）

For i = 1 To 9 Step 2

  b(a(i) Mod 10) = b(a(i) Mod 10) + 1

Next i

s = 0

For i = 0 To 9 Step 3

  s =s + b(i)

Next i

数组b各元素初始值为0， 数组元素a(1)到a(9)的值依次为“29,74,12,38,16,45,21,57,33”,则执行该程序段后，s的值为（  ）

Dim i As Integer, j As Integer, a(1 To 5) As Integer

For i =1 To 5

 a(i)=Int(Rnd*5+1)

 For j = 1 To i-1

   If a(i)=a(j) Then

    i=i-1 : Exit For

   End If

 Next j

Next i

执行程序后,数组中的数据可能是（  ）

s = "123456789"

g = ""

For i = 1 To 3

  n = Len(s)

  x = Int(Rnd * n) + 1

  g = g + Mid(s, x, 1)

  s = Mid(s, 1, x - 1) + Mid(s, x + 1, n - x)

Next i

在程序执行时，若变量x的值依次为3，3，6，则最终变量g的值为（  ）

For i=1 To 3

  For j=1 To 5-i

   If a(j)>a(j+1) Then

    t=a(j): a(j)=a(j+1): a(j+1)=t

   End If

  Next j

  Text1.Text = Text1.Text + Str(a(i))

Next i

数组元素a(1)到a(5)的值依次为“3,9,6,8,4”。该程序段执行后，文本框 Text1 显示的内容是（  ）

Function f(n As Integer) As Long

 If n = 1 Then

  f =5

 Else

  f =2 * f(n - 1) - 3

 End If

End Function

Private Sub Command1_click()

 Dim n As Integer

 n = Val(Text1.Text)

 Text2.Text = Str(f(n))

End Sub

该程序段运行后，在文本框Text1中输入5，单击命令按钮Command1后，文本框Text2中显示的是（  ）

i = 1: j = 8: s = ""

key =Text1.Text

Do While i <= j

  m =(i + j) \ 2

  If key = a(m) Then

   s = s + "M"

   Exit Do

  ElseIf key > a(m) Then

   j = m - 1: s = s + "L"

  Else

   i = m + 1: s = s + "R"

  End If

Loop

Text1.Text = s

数组元素a(1)到a(8)的值依次为“4,22,27,32,35,44,56,59”，该程序段执行后，文本框Text1中显示的内容不可能是（  ）

 For i = 1 To 3

  k = ""

  For j = 1 To 2 * i - 1

   k = k + " * "

  Next j

  List1.AddItem k

 Next i

该程序段运行后,在列表框List1中显示的是（  ）

s = "Inter(R) Core(TM) i3-4130 CPU @ 3.40GHz"

flag = False:k = 0

For i = 1 To Len(s)

 ch = Mid(s, i, 1)

 If ch >= "A" And ch <= "Z" or ch >= "0" And ch <= "9" Then

  If Not flag Then

   k = k + 1

   flag = True

  End If

 Else

  flag = False

 End If

Next i

Text1.Text = Str(k)

Function GCD(m As Long, n As Long) As Long

 Dim temp As Long, r As Long

 If m < n Then temp = m: m = n: n = temp

 d = m - n

 Do While d <> n

  If d >= n Then

    m = d

  Else

    m = n

    n = d

  End If

  d = m - n

 Loop

 GCD = n

End Function

Private Sub Command1_Click()

  Text1.Text = Str(GCD(48,36))

End Sub

程序运行完后，单击Command1按钮，文本框Text1中显示的是 （  ）

Dim a(1 To 5) As Integer, i As Integer

Dim flag As Boolean, j As Integer

a(1) =1 : a(2) = 1 : a(3) = 1 : a(4)= 1 : a(5) = 1

Randomize

For i = 1 To 5

 j = 1: flag = True

 Do While j <= i - 1 And flag = True

  a(i) = Int(Rnd * 5 + 1)

  If a(i) = a(j) Then

   i = i - 1: flag = False

  End If

  j = j + 1

 Loop

Next i

运行程序后，数组中的数据值可能是（  ）

Dim a(1 To 10) As Integer

Function Search(L As Integer, R As Integer) As Integer

 M = (L + R) \ 2

 If a(M) < a(M - 1) And a(M) > a(M + 1) Then

     ⑴  

 ElseIf a(M) > a(M - 1) And a(M) > a(M + 1) Then

     ⑵  

 ElseIf a(M) > a(M - 1) And a(M) < a(M + 1) Then

    ⑶  

 End If

End Function

Private Sub Command1_Click()

 Label1.Caption = "“峰顶”值是:" + Str(Search(1, 10))

End Sub

上述程序中划线处可选语句为:

①Search = Search(M + 1 , R)

②Search = Search(L , M - 1)

③Search = a(M)

则(1)(2)(3)处的语句依次是（  ）

For i = 1 To 4

 For j = 4 To i + 1 Step -1

    s = "*" + s

   Next j

   List1.AddItem s

  Next i

 运行上述程序段后,列表框List1中显示的结果是（  ）

Dim b(1 To 20) As Integer

Private Sub Command1_Click()

 Dim i As Integer, j As Integer, m As Integer

 i = 1: j = 20

 Key = Val(Text1.Text)

 Do While   (1)   

  m = (i + j + 1) \ 2

  If b(i) < b(m) Then

   If    (2)   Then 

    j = m - 1

   Else

    i = m + 1

  ElseIf Key = b(m) Then

   Exit Do

  Else

   If Key > b(m) And Key <= b(j) Then

    i = m + 1

   Else

    j = m - 1

  End If

 Loop

 If   (3)   Then

  Label2.Caption = "数组中无此数"

 Else

  Do While m > 0

   If Key = b(m) Then m = m - 1 Else Exit Do

  Loop

  Label2.Caption = "此数在第" + Str(m + 1) + "个位置"

 End If

End Sub

a(1) = 1: a(2) = 3: a(3) = 5: a(4) = 7: a(5) = 9

 s = "ICT2019reform"

 For i = 1 To 5

  t = a(i)

  s = Mid(s, 1, t - 1) + Mid(s, t + 1)

 Next i

Text1.Text = s

执行该程序段后，Text1显示的是（  ）

For i = 1 To 5

 k = i

 For j = i + 1 To 6

  If a(k) > a(j) Then k = j

 Next j

 t = a(k): a(k) = a(i): a(i) = t

 b((i + 2) Mod 6 + 1) = a(i)

Next i

 s = "Hello World"

 s1 = ""

 n = Len(s)

 For i = 1 To n \ 2

   If Mid(s, i, 1) > Mid(s, n - i + 1, 1) Then

     s1 = s1 + Mid(s, i, 1)

   Else

     s1 = Mid(s, n - i + 1, 1) + s1

   End If

 Next i

 Text1.Text = s1

执行该程序段后，在文本框Text1中显示的是（  ）

s = "491053"

For i = 1 To 3

   n = Len(s)

   k = 1

   For j = 2 To n

    If Mid(s, k, 1) >= Mid(s, j, 1) Then

      k = j

    Else

      Exit For  'Exit For表示退出循环

    End If

   Next j

   s = Mid(s, 1, k - 1) + Mid(s, k + 1, n - k)

 Next i

Label1.Caption = s

执行该程序段后，标签Label1中显示的值是（  ）

s = "2019appreciate": sum = 0

For i = 1 To Len(s)

  ch = Mid(s, i, 1)

  If ch >= "a" And ch <= "z" Then

    m = Asc(ch) - Asc("a") + 1

    a(m) = a(m) + 1

  End If

 Next i

 For i = 1 To 10

  If a(i) > 0 Then sum = sum + 1

 Next i

数组a各元素的初始值都为0，执行该程序段后，变量sum的值为（  ）

Randomize

For i = 1 To 6

a(i) = Int(Rnd * 20) + 1

If a(i) Mod 2 = i Mod 2 Then a(i) = a(i) - 1

Else

a(i) = a(i) + 2 End If

Next i

执行该程序段后，a（1）~ a（6）各元素可能的是（   ）

Dim i As Integer, sum As Integer

Dim a(1 To 6) As Integer, b(1 To 6) As Integer

sum = 0

a(6) = 18: a(5) = 7: b(6) = 14: b(5) = 16

For i = 4 To 1 Step -1

 a(i) = a(i + 2) - a(i + 1)

 b(i) = b(i + 2) - a(i)

 If b(i) Mod 3 = 0 Then sum = sum + b(i)

Next i

Text1.Text = Str(sum)

该程序段运行后，文本框Text1中显示的内容是（  ）

Dim a (1 To 6) As Integer

Randomize

a(1) = Int (Rnd*2) + 1

For i = 2 To 6

  a(j) = Int (Rnd*i) *2 + 1

  If a(i) < a(i-1) Then

    a(i) = a(i) + a(i-1)

  End If

Next i

执行该程序段后，数组元素a(1)到a(6)的值可能是（  ）