單項選擇題

You work as an application developer at Certkiller .com. You are developing a collection class named ClientCollection， which is to be used for storing the names of Certkiller .com’s clients that are situated in various geographical areas. These client names are represented by the Client class. You are planning to create a method named SortClients in the ClientCollection class to arrange Client objects in ascending order. You need to ensure that the appropriate interface is implemented by the Client class to allow sorting.What interface should be used？（）

A. IDictionary
B. IComparable
C. IComparer
D. IEqualityComparer

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單項選擇題

You work as an application developer at Certkiller .com. Certkiller .com wants you to develop an application that handles passes for Certkiller .com’s parking lot. The application has to store and retrieve vehicle information in a contiguous list that 
allows for advanced navigation techniques.You have already written and executed the following code： 
Vehicle v1， v2， v3， v4， v5； 
v1 = new Vehicle （"1M2567871Y91234574"， "Nissan Silvia"， 1996）； 
v2 = new Vehicle （"1H2569122493456960"， "Honda Civic"， 1999）； 
v3 = new Vehicle （"1F2569106891234589"， "Mitsubishi Lancer"， 2001）； 
v4 = new Vehicle （"1F7969122491234589"， "Mazda MX7"， 1998）； 
v5 = new Vehicle （"1T2569122493456123"， "Toyota Supra"， 2000）； 
LinkedList  vList = new LinkedList < Vehicle > （）； 
LinkedListNode < Vehicle > vNode； vNode = vList.AddFirst （v1）； 
vNode = vList.AddLast （v2）； 
vNode = = vList.AddAfter （vNode， v3）； 
vNode = = vList.AddAfter （vNode， v4）； 
vList.AddLast （v5）； 
foreach （Vehicle v in vList） { 
Console.WriteLine （"{0} {1} （{2}）"， 
v.MakeModel， v.Year， v.Vin）； } 
What output will be produced in the console？（）

A.A
B.B
C.C
D.D
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