low = 1: high = 8
key = Int(Rnd * 15 + 1) * 2
Do While low <= high
m = (low + high) \ 2
If a(m) >= key Then
high = m - 1
Else
low = m + 1
End If
Loop
Text1.Text = Str(low)
若数组元素a(1)到a(8)的值依次为 1,10,11,12,15,30,32,37,执行该程序段后,文本框Text1中显示的内容可能是( )