某公司使用DHCP服务器对公司内部主机的IP地址进行管理，已知：
1)该公司共有40个可用IP地址为：59.64.22.11～59.64.22.50
2)DHCP服务器选用Windows 2003 Server，其IP地址为：59.64.22.12
3)DHCP客户机使用额操作系统是Windows XP
请回答下列问题：
在能为客户机分配地址之前，还必须执行的操作是______。
参考答案：激活作用域
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| A man and his wife had a dog to 1 their house. When they went out, they always left the dog inside the house. One evening they wanted 2 to the cinema, 3 they left the dog in the house and locked the door and their 4 . They 5 their car. When the film finished, they came back home. They opened the gate and put the car 6 . But when they came to the 7 door, they found that part of the glass 8 the door was broken. The door was unlocked and 9 . A 10 ! They went in and quickly looked in all the rooms to see 11 things the robber had taken. But everything was in the 12 place and nothing at all 13 . The dog 14 in the sitting room on the floor. The lady was 15 the dog. "Why didn't you keep the house?" she said. The dog was 16 to see its owners. It began to wag its tail (摇尾巴) and then it went to a corner of the room and picked up something in its 17 . It went to the lady and 18 the thing at her 19 . When the lady went to pick it up, she gave a scream (尖叫). Can you guess what the dog's present was? It was … a … man's 20 ! | ||||
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