单选

堆是一种数据结构，(36)是堆。

A．(9,30,60,20,16,18,50,80)
B．(9,50,80,30,60,20,16,18)
C．(9,16,18,50,80,30,60,20)
D．(9,18,16,20,50,80,30,60)

试题出自试卷《软件水平考试（初级）程序员上午（基础知识）模拟试卷25》

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