单项选择题
A.<location path="Premium.aspx"> <system.web> <authorization> <allow users="Subscribers"/> <deny users="*"/> </authorization> </system.web> </location>
B.<location path="Premium.aspx"> <system.web> <authorization> <allow roles="Subscribers"/> <deny users="*"/> </authorization> </system.web> </location>
C.<location path="Premium.aspx"> <system.web> <authorization> <allow roles="Subscribers"/> <deny users="?"/> </authorization> </system.web> </location>
D.<location path="Premium.aspx"> <system.web> <authorization> <deny users="*"/> <allow roles="Subscribers"/> </authorization> </system.web> </location>
单项选择题 A Web service returns a list of system users in the following format. You need to populate a drop-down menu with the IDs and names of the users from the Web service, in the order provided by the service. Which code segment should you use?（）
单项选择题 YoucreateaWebpagethatcontainsthespanshowninthefollowinglineofcode.TextYouneedreplacethecontentsofthespanwithHTMLthatyoudownloadfromaURLspecifiedbyaglobalvariablenamedlocalURL.Whichcodesegmentshouldyouuse？（）
单项选择题 You create an ASP.NET page. The page uses the jQuery $.ajax function to make calls back to the server in several places. You add the following div element to the page. You need to implement a single error handler that will add error information from all page $.ajax calls to the div named errorInfo. What should you do？（）