i = 1: j = 9
k= Int(Rnd * 6) * 10 + Int(Rnd * 6)
Do While i <= j
m = (i + j) \ 2
If a(m) Mod 10 > k Mod 10 Then
j = m - 1
Else
i = m + 1
End If
Loop
已知数组a(1) 至a(9)中的值分别是“21,13,23,43,15,45,47,48,48”,运行该程序段后,j的值不可能是( )