多項選擇題

You are implementing an ASP.NET Web site. The site contains the following class.
The Web site interacts with an external data service that requires Address instances to be given in the following XML format.

You need to ensure that Address instances that are serialized by the XmlSerializer class meet the XML format requirements of the external data service. Which two actions should you perform.（）

A.Add the following attribute to the AddressType field. [XmlAttribute]
B.Add the following attribute to the Line2 field. [XmlElement（IsNullable=true）]
C.Add the following attribute to the ZipPostalCode field. [XmlAttribute（"ZipCode"）]
D.Add the following attribute to the ZipPostalCode field. [XmlElement（"ZipCode"）]

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多項選擇題

You are implementing an ASP.NET Web site. The Web site contains a Web service named CustomerService. The code-behind file for the CustomerService class contains the following code segment.

You need to ensure that the GetProducts method can be called by using AJAX.Which two actions should you perform？（）

A.Apply the WebService attribute to the ProductService class.
B.Apply the ScriptService attribute to the ProductService class.
C.Apply the WebMethod attribute to the GetProducts method.
D.Apply the ScriptMethod attribute to the GetProducts method.

單項選擇題

You are implementing an ASP.NET application. You add the following code segment.
You need to add code to return a list of all Person objects except those with a UserId that is contained in the secretUsers list. The resulting list must not contain duplicates. Which code segment should you use？（）

A.var secretPeople = （from p in allPeople from u in secretUsers where p.UserId == u select p）.Distinct（）； return allPeople.Except（secretPeople）；
B.return from p in allPeople from u in secretUsers where p.UserId != u select p；
C.return （from p in allPeople from u in secretUsers where p.UserId != u select p）.Distinct（）；
D.List people = new List（ from p in allPeople from u in secretUsers where p.UserId != u select p）； return people.Distinct（）；

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