[单选题]

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 “Hello” End If End Sub 程序运行后,为了在窗体上输出“Hello”,应在窗体上执行以下______ 操作。

A.同时按下Shift键和鼠标左按钮.

B.同时按下Shift键和鼠标右按钮

C.同时按下Ctrl、Alt键和鼠标左按钮

D.同时按下Ctrl、Alt键和鼠标右按钮

参考答案与解析:

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