[单选题]

编写如下事件过程:Private Sub Form_ KeyDown(KeyCode As Integer,Shift As Integer) If (Button And 3)= 3 Then Print "AAAA" End IfEnd Sub程序运行后,为了在窗体上输出“AAAA”,应按下的鼠标键为______。

A.左

B.右

C.同时按下左、右

D.按什么键都不显示

参考答案与解析:

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