A--abbreviated dialing code B--off-peak hoursC--charging period

游客2023-09-22 27

问题 A--abbreviated dialing code          B--off-peak hours
C--charging period                   D--access code
E--identity number                   F--video conference
G--operational status                H--information subscription service
I --Network User Address             J --audio signal
K--local user terminal             L--file management
M--response signal                   N--operating instructions
O--change of the battery unit       P--function indicator
Q--entry rejected                   R--external control

51．(　　)计费时间       (　　)非高峰时间
52．(　　)网络用户地址    (　　)标识码
53．(　　)本地用户终端    (　　)音频信号
54．(　　)文件管理       (　　)操作指令
55．(　　)外部控制       (　　)功能指示
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选项

答案 L,N

解析

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