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问题描述:

[单选] 完成在双向循环链表结点p之后插入s的操作是()。
A.p->next =s; s-> prior =p; p-> next-> prior =s; s-> next =p-> next; B.p->next-> prior =s; p-> next =s; s-> prior =p; s-> next =p-> next; C.s-> prior =p; s-> next = p->next; p-> next =s; p-> next-> prior =s; D.s-> prior =p; s-> next = p->next; p-> next-> prior =s;p-> next =s;
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