题目内容
电焊机的接拆线、停送电工作应由（）进行操作。
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党的十八大指出解决“三农”问题的根本途径是（）。
中年男性患者，久居南方湿地，长期从事体力劳动，出现下肢静脉曲张20余年，5年来自觉体力下降明显，肢体静脉曲张团明显增大，近2年来，下肢出现凹陷性水肿，并发左小腿胫皮肤反复破溃，周围皮肤色晦暗，自觉肢体沉胀明显，查舌淡、苔白、脉细涩。辨证选方宜（）
You are the administrator of Company.com's Windows 2000 Network. The routed TCP/IP network that you administer consists of 10 Windows 2000 Server computers and 75 Windows 2000 Professional computers. All computers are members of a single Windows 2000 domain named Company.com. TCP/IP is the only network protocol used at Company's office. You have recently installed 10 new Windows 2000 Professional computers and you want to enable the new computers to use host names to connect to shared resources on the network. You configure a TCP/IP address and a gateway address on each new computer. You want to complete the configuration to allow the computers to communicate on the network. What should you do?（）
试说明什么是PONA？
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