程序段如下：Private Sub Command1_ Click() a = 0 for 1=15 To 15 Step- 2 a = a +1 Next I Print a, IEnd Sub发生Command 1的单击事件后，程序的输出结果是 ______。

A．0 13

B．15 13

C．0 15

D．15 15

[单选题]设有如下程序： Private Sub Command1_ Click() Dim sum As Double, x As Double sum=0 n=0 For i=1 To 3 x=n/i n=n+1 sum=sum+x Next i End Sub 该程序通过For循环来计算sum的值，sum值的精确结果是( )。A．1+1/2+2/3B．1+1/2+1/3+1C．1/2+2/3D．1/2+1/3

[单选题]给出下面的程序：Private Sub Command1_ Click() Dim Check, Counter Check= True: Counter = 0 do do while Counter ＜ 20 Counter = Counter +1 if Counter = 10 then Check=False exit do End if Loop Loop until Check=False MsgBox CounterEnd Sub 程序最后弹出的消息对话框的内容是______。A

[单选题]有如下程序段：Private Sub Command1_Click( ) Dim a As Integer a=2 For i=1 To 3 Print G(A)Next iEnd SubFunction G(a As Integer) b=0 Static c b=b + 1 c=c + 1 G=a + b + cEnd Function运行上面的程序后，单击命令按钮，输出结果为A．1 2 3B．2 3 4C．4 5 6D．1 4 6

[单选题]下列事件过程：Private Sub Command1_ Click() MsgBox Str (123+123)End Sub运行时，信息框中出现的结果是______。A．123+123B．123C．246D．显示出错信息

[单选题]现有如下程序： Private Sub Command1_Click() s=0 For i=1 To 5 s=s+f(5+i) Next Print s End Sub Public Function f(x As Integer) If x＞=10 Then t=x+1 Else t=x+2 End If f=t End Function 运行程序，则窗体上显示的是( )。A．38B．49C．61D．70

[单选题]有如下程序：Option base 1Private Sub Command1_ClickD．im arr(10)A．rr=Array(10,35,28,90,54,68,72,90)F．or Each a In arrIf a>50 thenSum=sum+aE．nd IfNext aE．nd Sub运行上述程序时出现错误，错误之处是A．)数组定义语句不对，应改为Dim arrB．)没有指明For 循环的终值C．)应在For语句之前增加sum=0D．)Next a 应改为next

[单选题]有如下程序:Private Sub Command1_Click()a$="A WORKER IS HERE"x=Len(a$)F．or i=1 To x - 1b$=Mid$(a$, i, 3)If b$="WOR" Then S=S + 1NextPrint SE．nd Sub单击命令按钮，程序运行结果为A．1B．2C．3D．5

[单选题]有如下程序：Private Sub Command1_Click()a$="A WORKER IS HERE"x=Len(a$)F．or i=1 To x-1b$=Mid$(a$，i，3)If b$="WOR"，Then S=S+1NextPrint SE．nd Sub单击命令按钮，程序运行结果为AA．1B．2C．3D．5

[单选题]有如下程序。Private Sub Command1_Click()D．im a As SingleD．im b As Singlea=5: b=4C．all Sub1(a, b)E．nd SubSub Sub1(x As Single, y As Single)t=xx=t / yy=t Mod yE．nd Sub在调用运行上述程序后,a和b的值分别为A．0 0B．1 1C．2 2D．1 2

[单选题]有如下程序： Private Sub Command1_Click() a$="A WCIRKER IS HERE" x=Len(a$) For i=1 To x-1 b$=Mid$(a$,i,3) If b$="WOR"Then S=S+1 Next Print S End Sub 单击命令按钮，程序运行结果为A．1B．2C．3D．5