单项选择题

以下程序段的执行结果是 ______。 Dim A(3, 3) For m = 1 To 3 For n = 1 To 3 If n = m Or n = 3 - m + 1 Then A(m, n) =m + n Else A(m, n) = 0 End If Next n Next m For m = 1 To 3 For n = 1 To 3 Print A(m, n); Next n Print Next m

A．1 1 1 1 1 1 1 1 1
B．2 0 4 0 4 0 4 0 6
C．0 0 0 0 0 0 0 0 0
D．1 0 1 0 1 0 1 0 1
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单项选择题
有如下函数:Private Function firstfunc(x As Integer, y As Integer) As Integer Dim n As Integer Do While n ＜= 4 x=x +y n=-+1 Loop firstfunc = x End Function调用该函数的事件过程如下:Private Sub Command1_lick() Dim x As Integer Dim y As Integer Dim n As Integer Dim z As Integer x=1 y=1 For n = 1 To 3 z = firstfunc(x, y) Next n Print z End Sub该事件过程的执行结果是 ______。
A．1
B．3
C．16
D．9
单项选择题
有程序如下: Sub subP(b() As Integer) For i=1 To 4 b(i)=2*i Next i End Sub Private Sub Command1_Click() Dim a(1 To 4) As Integer a(1)=5 a(2)=6 a(3)=7 a(4)=8 subP a() For i=1 To 4 Print a(i) Next i End Sub运行上面程序，单击命令按钮，输出结果为______ 。
A．2 4 6 8
B．5 2 2 2
C．10 12 14 16
D．出错
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