过程代码段如下，单击Button1后，消息框中显示的结果是______。 Public Sub F1(ByRef n%, ByVal m%) n = n Mod 10 m = m / 10 End Sub Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click Dim x%, y% x=12 y=34 Call F1(x, y) MsgBox( x & " " & y ) End Sub
A、2 34
B、12 34
C、2 3
D、12 3

A.Click