某VB的事件过程如下: Private Sub Command1_Click() Dim a As Integer a = Val(Text1.Text) a =" 2" * a + 1 Text1.Text = StrA. End Sub 程序运行时,在文本框Text1中输入2,连续三次单击命令按钮Command1后,Text1中显示的内容是( ) A.47 B.5 C. 11 D. 23
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