题目内容

下列（）关键码序列不符合堆的定义。

A，C，D，G，H，M，P，Q，R，X
B. A，C，M，D，H，P，X，G，O，R
C. Q，D，P，R，C，Q，X，M，H，G
D. A，D，C，M，P，G，H，X，R，Q

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