纵向变形
You have a computer running Windows 2000 Professional. You have purchased a new USB scanner. You attached it to the USB port. When you go to device manager to see the status of the USB port， You did not find any USB controller there. You then reboot your system and go to system BIOS settings and enable the USB Controller. But it is still missing. What should you do to resolve this problem？（） ["Update the scanner drivers using certified drivers","Enable the USB port in the computers BIOS again.","Contact the maker or vendor for you system and obtain the current version of BIOS.","Enable the USB hub controller in device manager.","Reinstall the USB device driver and disable the USB error detectio"]
横向变形
理论和实践的桥梁
You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. The application allows users to post comments to a page that can be viewed by other users. You add a SqlDataSource control named SqlDS. You write the following code segment： 01 private void SaveComment（） 02 { 03 string ipaddr； 04 ► 05 SqlDS1.InsertParameters["IPAddress"].DefaultValue = ipaddr； 06 ... 07 SqlDS1.Insert（）； 08 } You need to ensure that the IP Address of each user who posts a comment is captured alongwith the user’s comment. Which code segment should you insert at line 04？（） ["ipaddr = Server["REMOTE_ADDR"].ToString(); ","ipaddr = Session["REMOTE_ADDR"].ToString(); ","ipaddr = Application["REMOTE_ADDR"].ToString(); ","ipaddr = Request.ServerVariables["REMOTE_ADDR"].ToString()"]
损伤
