單項(xiàng)選擇題設(shè)有一個(gè)帶頭結(jié)點(diǎn)的鏈隊(duì)列,隊(duì)列中每個(gè)結(jié)點(diǎn)由一個(gè)數(shù)據(jù)域data和指針域next組成,front和rear分別為鏈隊(duì)列的頭指針和尾指針。設(shè)p指向要入隊(duì)的新結(jié)點(diǎn)(該結(jié)點(diǎn)已被賦值),則入隊(duì)操作為()。

A.rear->next=p;rear=p;
B.rear->next=p;p=rear;
C.p=rear->next;rear=p;
D.rear=p;rear->next=p;


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