设已经在'菜单编辑器'中设计了窗体的快捷菜单,其顶级菜单为Bs,取消其'可见'属性,运行时,在以下事件过程中,可以使快捷菜单响应鼠标右键菜单的是
A.
Private Sub Form_MouseDown(Button As Integer, Shift As Integer,_X As Single,Y As Single) If Button=2 Then PopupMenu Bs, 2 End Sub
B.
Private Sub Form_MouseDown(Button As Integer, Shift As Integer,_X As Single,Y As Single) PopupMenu Bs End Sub
C.
Private Sub Form_MouseDown(Button As Integer, Shift As Integer,_X As Single,Y As Single) PopupMenu Bs,0 End Sub
D.
Private Sub Form_MouseDown(Button As Integer, Shift As Integer,_X As Single,Y As Single) If (Button=vbLeftButton) Or (Button=vbRightButton) Then PopupMenu Bs End Sub