单项选择题

窗体中有命令按钮Command1，事件过程如下。
Public Function f(x As Integer)As Integer
Dim y As Integer
x=20
y=2
f=x*y
End Function
Private Sub Command1_Click()
Dim y As Integer
Static x As Integer
x=10
y=5
y=f(x)
DebugPrint x；y
End Sub
运行程序，单击命令按钮，则立即窗口中显示的内容是( )。