2007年9月全国计算机等级考试二级VB模拟试题(11)及答案

(21) 下列程序段的执行结果为
m=1
n=1
Select Case m
   Case 1
      Select Case n
         Case 0
             Print "**0**"
         Case 1
             Print "**1**"
       End Select
   Case 2
       Print "**2**"
End Select
A) **0**       
B) **1**
C) **2**       
D) 0
正确答案:  B

(22) 下列程序段的执行结果为
m=2
n=3
Do
   m=m + n
   n=n + 1
Loop While m < 10
Print m; n
A) 1 5       
B) 14 6
C) a b       
D) 10 25
正确答案:  B

(23) 有如下的程序段，该程序段执行完后，共执行的循环次数是
total=0
Counter=1
Do
Print Counter
total=total * Counter+1
Print total
Counter=Counter + 1
If total > 10 Then
   Exit Do
End If
Loop While Counter <=10
A) 4        
B) 10
C) 15       
D) 20
正确答案:  A

(24) 下列程序的运行结果为
Dim a(-1 To 6)
For i=LBound(a, 1) To UBound(a, 1)
   a(i) =i
Next i
Print a(LBound(a, 1) ) ; a(UBound(a, 1) )
A) 0 0       
B) -5 0
C) -1 6       
D) 0 6
正确答案:  C

(25) 下面的数组声明中，正确的是
A) Dim pict［3,4］ As Integer  
B) Dim pict(3,4) As Integer
C) Dim pict［3.4］ As Integer  
D) Dim pict(3:4) As Integer.
正确答案:  B

(26) 下面的过程定义语句中不合法的是
A) Sub Para(ByVal n() )    
B) Sub Para(n) As Integer
C) Function Para(ByVal n)   
D) Function Para(proc1)
正确答案:  B

(27) 单击命令按钮时，下列的执行结果为
Private Sub Command1_Click()
   Dim x As Integer, y As Integer
   x=86: y=29
   Call Proc(x, y)
   Print x; y
End Sub
Public Sub Proc(n As Integer, ByVal m As Integer)
   n=n Mod 10
   m=m Mod 10
End Sub
A) 12 32       
B) 6 29
C) 2 3       
D) 12 3
正确答案:  B

(28) 下列程序的执行结果为
Private Sub Command1_Click()
   Dim FirStr As String
   FirStr="abcdef"
   Print Pct (FirStr)
End Sub
Private Function Pct(xStr As String) As String
   Dim tempStr As String, strLen As Integer
   tempStr=""
   strLen=Len(xStr)
   i=1
   Do While i <=Len(xStr) - 3
      tempStr=tempStr + Mid(xStr, i, 1) + Mid(xStr, strLen - i + 1, 1)
      i=i + 1
   Loop
   Pct=tempStr
End Function
A) abcdef       
B) afbecd
C) fedcba       
D) defabc
正确答案:  B

(29) 单击命令按钮时，下列程序代码的运行结果为
Private Sub Command1_Click()
   Print MyFunc(20, 18)
End Sub
Public Function MyFunc(m As Integer, n As Integer) As Integer
   Do While m <> n
      Do While m > n: m=m - n: Loop
      Do While m < n: n=n - m: Loop
   Loop
   MyFunc=m
End Function
A) 0        
B) 2
C) 4        
D) 6
正确答案:  B