题目

某对分查找算法的VB程序段如下： i = 1: j = 8: s =“” key =“sheep” Do While i < =j   m =(i+j)\2   If key = a(m) Then   s = s + “M”   Exit Do ElseIf key < a(m) Then   j = m-1:s = s+“L” Else   i=m+1 : s = s +“R”   End if Loop Text1. Text = s 数组元素a(1)到a(8)的值依次为“tiger, snake, sheep, rabbit, pig, muse, monkey, dog”，该程序段执行后，文本框Text1中显示的内容是（  ） A . LR B . RLM C . LRM D . LRL 答案：C

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