WAN data link encapsulation types include which of the following?（）
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设单链表中节点的结构为（data，link)。已知指针q所指节点是指针p所指节点的直接前驱，若在*q与*p之
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Access to non-peer layer is available in TCP/IP model, e.g. data link layer can access
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以下程序段用以统计链表中元素的个数。其中first指向链表第一个结点，count用来统计结点个数。请填空。 struct link { char data； struct link * next； } struct link * p，* first； | int count＝0； p＝first； while(【 】 ) { 【 】 ； p＝【 】 ； }
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已知形成链表的存储结构如下图所示，则下述类型描述中的空白处应填______。struct link{char data；
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设单链表中节点的结构为(data，link)。已知指针q所指节点是指针P所指节点的直接前驱，若在*q与*p之间插入节点*s，则应执行下列哪一个操作？