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【单选题】
在一个单链表中,若q所指结点是p所指结点的前驱结点若在q与p之间插入一个s所指结点则执行
A.
s->next=p->next; p->next=s;
B.
p->next=s; s->next=q;
C.
p->next=s->next ; s->next=p;
D.
s->next=p; q->next=s;
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A.
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A.
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is due almost entirely to upbringing
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