下列程序运行后,单击命令按钮,窗体显示的结果为( )。 Private Function pl(x As Integer,y As Integer,z As Integer) pl=2*x+y+3*z End Function

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问题 下列程序运行后,单击命令按钮,窗体显示的结果为(    )。    Private Function pl(x As Integer,y As Integer,z As Integer)    pl=2*x+y+3*z    End Function    Private Function p2(X As Integer,y As Integer,z As Integer)    p2=p1(z,y,x)+x    End Function    Private Sub Commandl_Click()

选项 A、23     
B、19
C、21     
D、22

答案A

解析
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