题目

【加试题】有如下程序段：For k = 1 To 4 Step 3For i = k To k + 1For j = i + 1 To k + 2If a(j) < a(i) Thentemp = a(j): a(j) = a(i): a(i) = tempEnd IfNext jNext iNext k数组元素a(1)到a(6)的值依次为“9,8,7,6,5,4”，经过该程序段“加工”后，数组元素a(1)到a(6)的值依次为（    ） A . 9,8,7,6,5,4 B . 4,5,6,7,8,9 C . 9,8,7,4,5,6 D . 7,8,9,4,5,6 答案：D

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