正确答案: ACD
1G 2A 5A
题目:启动接力切换的事件可以是()
解析:A, C, D
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举一反三的答案和解析:
[多选题]在下列 IP 地址中,只有( ) 是正确的,其掩码是( )。
193.132.27.18
75.028.101.20
解析:A,C
[多选题]IP地址192.168.1.1的子网掩码为255.255.255.0,其网络地址是( ),其直接广播地址为( )。
192.168.1.0
0.0.0.0
解析:B,D
[多选题]CNP1中传模校正前需要准备()
电子地图
天线数据
测试点数据
路测数据
解析:A, B, C, D
[多选题]Using fiber optic cable, optical communications have enabled telecommunication (93) to be made over much greater distances and (94)much lower levels of(95)in the transmission medium and possibly most important of all, optical fiber communications have enabled much higher data rates to be accommodated
links
lines
解析:A,A,B