[单选题]

编写如下事件过程: Private Sub Form_MouseMove(ButtonAsInteger,ShiftAsInteger,X As Single,YAsSingle) Cls If(Button Andl)ThenPrint"你好" End Sub 程序运行后,为了在窗体上显示“你好”,应在窗体上执行以下( )操作。

A.只能按下左按键并拖动

B.只能按下右按键并拖动

C.只能按下左按键

D.只能按下右按键

参考答案与解析:

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