QiNQ技术通过在以太帧中堆叠两个802.1P包头,有效地扩展了VLAN数目,使VLAN的数目最多可达()个。
You can _____ some bottles of wine, or some chocolates, or a bunch of flowers.
A campus emergency ______ occur at any time of the day or night, weekend, or holiday, with little or no warning.
从狭义上说,信息技术(Information Technology)是指以微电子技术、通信技术、( )为主干,结合集成电路技术、光盘技术、机器人技术、高清晰度电视技术等的综合技术.
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