题目

有如下VB程序段：该程序段运行后，文本框Text1中显示的内容是 (     ) Dim i As Integer, Sum As Integer Dim a(1 To 11) As Integer Sum = 6 a(11) = 49 For i = 10 To 1 Step -1   a(i) = a(i +1) -1   If a(i) Mod 3 = 0 Then Sum = Sum + a(i) Next i Text1.Text = Str(Sum) A . 174 B . 36 C . 180 D . 42 答案：C

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