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问题 多项选择题

私自迁移，更动和擅自操作供电企业的用电计量装置、电力负荷管理装置、供电设施以及由供电企业调度的客户受电设备者（）

A．居民客户，承担每次300元违约使用电费

B．居民客户，承担每次500元违约使用电费

C．其他客户，承担每次300元违约使用电费

D．其他客户，承担每次500元违约使用电费

答案

参考答案：B, D

单项选择题

SOCKS is a genetic proxy protocol for TCP/IP-based networking, applications. SOCKS includes two (21) , the SOCKS server and the SOCKS client. The SOCKS server is implemented at the application layer. The SOCKS client is implemented between applications and the (22) layer. When an application client needs to connect to an application server, the client connects to a SOCKS proxy server. The proxy server connects to the application server instead of the client, and (23) data between the client and the application server. For the application server, the proxy server is the (24) . SOCKS is also one of the popular (25) to network firewalls. Because of its simplicity and flexibility, SOCKS has been used as genetic application proxy in virtual private network (VPN), and for extranet applications.

A．workstation

B．user

C．customer

D．client
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单项选择题

HOOK表示（）.

A.钩状回波

B.线状回波

C.实心回波
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