未经批准擅自使用解锁钥匙(工具)进行解锁操作,视为无票操作。()
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我国的居民纳税人,按个人所得税法规定,其来源于中国境内和境外的所得,应当合并计算应纳税额。()
Which of the following protocols allow the set up, teardown and streaming of VoIP traffic? ()(SelectTWO)
A. NTP
B. VNC
C. RTP
D. SIP
E. TLS
Which of the following devices is used to connect multiple devices to a network and does not stopbroadcast traffic?()
A. Switch
B. Hub
C. Modem
D. Repeater