For i = 1 To 9 Step 2
b(a(i) Mod 10) = b(a(i) Mod 10) + 1
Next i
s = 0
For i = 0 To 9 Step 3
s =s + b(i)
数组b各元素初始值为0, 数组元素a(1)到a(9)的值依次为“29,74,12,38,16,45,21,57,33”,则执行该程序段后,s的值为( )
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