key = Int (Rnd*5)*2+ 11
i = 1: j = 8: c = 0
Do While i <= j
m = (i+j+1) \ 2
If a(m) >= key Then i = m+1 Else j = m-1
c = c+1
Loop
数组元素a(1)到a(8)的值依次为“23,21,19,18,16,15,14,11”。若该程序段执行后,下列说法错误的是( )