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题型:单选题 题类:常考题 难易度:普通

浙江省高中信息技术 算法及VB语言基础单元检测

有如下VB程序段:

Dim i As Integer, Sum As Integer

Dim a(1 To 6) As Integer, b(1 To 6) As Integer

Sum = 0

a(6) = 18: a(5) = 7: b(6) = 14: b(5) = 16

For i = 4 To 1 Step -1

 a(i) = a(i+2)-a(i+1)

 b(i) = b(i+2)-a(i)

 If b(i) Mod 3 = 0 Then Sum = Sum + b(i)

Next i

Textl .Text = Str(Sum)

该程序段运行后,文本框text1中显示的内容是(  )

A、39 B、30 C、-9 D、12
举一反三
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