‌设带有头结点链栈，其栈项指针为top，向链栈中插入一个s结点时，则执行（）‎ A: s->next=top->next; top->next=s B: s->next=top->next; top=s C: s->next=top; top->next=s D: top->next=s; s->next=top->next

在循环双链表的p所指结点之后插入s结点的操作是（ ） A: p->next=s; s->pre=p; p->next->pre=s; s->next=p->next; B: p->next=s; p->next->pre=s; s->pre=p; s->next=p->next; C: s->pre=p; s->next=p->next; p->next->pre=s; p->next=s; D: s->pre=p; s->next=p->next; p->next=s; p->next->pre=s;

在循环双链表的p所指结点后插入s所指结点的操作是（ ）。 A: s-＞prior=p; s-＞next=p-＞next; p-＞next=s; p-＞next-＞prior=s; B: p-＞next=s; p-＞next-＞prior=s; s-＞prior=p; s-＞next=p-＞next; C: p-＞next=s; s-＞prior=p; p-＞next-＞prior=s; s-＞next=p-＞next; D: s-＞prior=p; s-＞next=p-＞next; p-＞next-＞prior=s; p-＞next=s;

在循环双链表的P所指节点之后插入s所指节点的操作是( ) A: p->next=s; s->prior=p; p->next->prior=s; s->next=p->next; B: p->next=s; p->next->prior=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=s;p->next->prior=s;

在循环双链表的p所指的结点之前插入s所指结点的操作是 （ ） A: p->;prior = s；s->;next = p；p->;prior->;next = s；s->;prior = p->;prior； B: p->;prior = s；p->;prior->;next = s；s->;next = p；s->;prior = p->;prior； C: s->;next = p；s->;prior = p->;prior；p->;prior = s；p->;prior->;next = s； D: s->;next = p；s->;prior = p->;prior；p->;prior->;next = s；p->;prior = s；