A.Add a new Web page named Products.aspx to the Dynamic……

多项选择题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"）]

多项选择题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.

单项选择题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（）；

单项选择题You are implementing an ASP.NET application that uses LINQ to Entities to access and update the database.The application includes the following method to update a detached entity of type Person. You need to implement the UpdatePerson method to update the database row that corresponds to the personToEdit object. Which code segment should you use？（）

A._entities.People.Attach（personToEdit）； _entities.ObjectStateManager.ChangeObjectState（personToEdit， EntityState.Modified）； _entities.SaveChanges（）；
B._entities.ObjectStateManager.ChangeObjectState（personToEdit， EntityState.Added）；_entities.SaveChanges（）；
C._entities.People.ApplyCurrentValues（personToEdit）； _entities.SaveChanges（）；
D._entities.People.Attach（new Person（） { Id = personToEdit.Id }）；_entities.ObjectStateManager.ChangeObjectState（personToEdit， EntityState.Modified）；_entities.SaveChanges（）；

单项选择题You are implementing an ASP.NET page. Client-side script requires data. Your application includes a class named Person with a Name property of type string. The code-behind file of the page includes the following code segment. You need to use the JavaScriptSerializer class to serialize only the Name property of each item in the people list. Which code segment should you use？（）

A.JsonValue = json.Serialize（people.Select（p => p.Name））；
B.var names = from person in people select person； JsonValue = "{" + json.Serialize（names） + "}"；
C.JsonValue = json.Serialize（people.SelectMany（ p =>Name.AsEnumerable（）））；
D.var names = from person in people select person； JsonValue = json.Serialize（names）；