单击命令按钮时,下列程序的执行结果是 Private Sub Command1_Click（)BT 4 End Sub Private Sub B

单击命令按钮时,下列程序的执行结果是

Private Sub Command1_Click()

BT 4

End Sub

Private Sub BT(x As Integer)

x=x*2 + 1

If x ＜ 6 Then

Call BT(x)

End If

x=x  2

Print x;

End Sub

A．15

B．16

C．17

D．18