10BASE-T以太网使用曼彻斯特编码，其编码效率为（ ）%。
在快速以太网中使用4B/5B编码，其编码效率为（ ）%。
问题1选项
A.30
B.50
C.80
D.90
问题2选项
A.30
B.50
C.80
D.90
正确答案及解析
正确答案
BC
解析
暂无解析
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