[单选]

You have a computer that runs Windows Vista.
You run ipconfig /release from the command prompt and receive the following error message: “The requested operation requires elevation.”
You need to release the IP address for the computer.
What should you do?（）

一般情况下闸孔出流的能量损失主要是局部水头损失。（） 临边外侧靠近街道时，除设（）外，立面还应采取荆色等硬封闭措施，防止施工中落物伤人。 防护栏杆。 挡脚板。 封挂安全立网。 安全警告示语。 安全措施。 浅孔爆破和深孔爆破如何区分，各适用于什么场合？ 根据我国《个人所得税法》的规定，对（）可以实行加成征收 特许权使用费所得。 工资、薪金所得。 劳务报酬所得。 因福利彩票中奖所得。 Referring to the partial Cisco Catalyst switch configuration shown, which two of these statements are correct? （）(Choose two.) A router connected to the fastethemet 1/4 interface will be able to communicate with hosts connected to interface fastethemet 1/1,1/2, and 1/3.。 A router connected to the fastethemet 1/4 interface will not be able to communicate with the host connected to interface fastethemet 1/3.。 Hosts connected to interface fastethemet 1/1 and 1/2 can communicate with each other.。 Hosts connected to interface fastethemet 1/1,1/2, and 1/3 can communicate with each other.。

You have a computer that runs Windows Vista.
You run ipconfig /release from the command prompt and receive the following error message: “The requested operation requires elevation.”
You need to release the IP address for the computer.
What should you do?（）