虾汤的做法光通讯专业术语（传输网）ADM Add Drop Multiplexer 分插复用器 利用时隙交换实现宽带管理，即允许两个STM-N信号之间的不同VC实现互连，并且具有无需分接和终结整体信号，即可将各种G.703规定的接口信号(PDH)或STM-N信号(SDH)接入STM-M(MN)内作任何支路。 AON Active Optical Network 有源光网络 有源光网络属于一点对多点
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山东建筑大学成人高等教育期末考试大学英语复习题I．Multiple choices （单项选择）1. Ms. Ross is one of the judges who ___ going to look into the ca.A. amB. areC. isD. was2. _____ is quite clear.A. Where is warB. Why is warC. What i
