编写如下事件过程: Private Sub Form_ MouseDown (Button As Integer, _ Shift As Integer, X As Single, Y As Singl

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问题 编写如下事件过程:    Private Sub Form_ MouseDown (Button As Integer, _                         Shift As Integer, X As Single, Y As SinglE)If Shift = 6 And Button = 2 Then          Print "BBBB"       End If    End Sub程序运行后,为了在窗体上输出BBBB,应执行的操作为______。

选项 A、同时按下Shift 键和鼠标左键
B、同时按下Ctrl、Alt 键和鼠标右键
C、同时按下Shift 键和鼠标右键
D、同时按下Ctrl、Alt 键和鼠标左键

答案B

解析
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