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在以下事件过程中,可以在用户按下鼠标右键时,显示一个上边框,以鼠标当前位置为中心的弹


在以下事件过程中,可以在用户按下鼠标右键时,显示一个上边框,以鼠标当前位置为中心的弹出式菜单,而且这个弹出式菜单还可以识别右键对菜单命令的选择,相应的选项是()。

A.Private Sub Form_MouseUp(Button As Integer, Shift As Integer, _

X As Single, Y As Single)

If Button=2 Then

PopupMenu mnuEdit, vbPopupMenuCenterAlign Or _

vbPopupMenuRightButton, X, Y, mnuEditOpen

End If

End Sub

B.Private Sub Form_MouseUp(Button As Integer, Shift As Integer, _

X As Single, Y As Single)

If Button=2 Then

PopupMenu mnuEdit,

End If

End Sub

C.Private Sub Form_MouseUp(Button As Integer, Shift As Integer, _

X As Single, Y As Single)

PopupMenu mnuEdit, vbPopupMenuCenterAlign Or _

vbPopupMenuRightButton

End Sub

D.Private Sub Form_MouseUp(Button As Integer , _

Shift As Integer, X As Single, Y As Single)

If Button=2 Then

PopupMenu mnuEdit, 2

End If

End Sub

请帮忙给出正确答案和分析,谢谢!

参考答案
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