單項選擇題

You work as the application developer at Hi-Tech.com. You create a new custom dictionary named MyDictionary. Choose the code segment which will ensure that MyDictionary is type safe？（）

A. Class MyDictionary Implements Dictionary （Of String，String）
B. Class MyDictionary Inherits HashTable
C. Class MyDictionary Implements IDictionary
D. Class MyDictionary End Class Dim t as New Dictionary （Of String， String） Dim dict As MyDIctionary= CType （t，MyDictionary）

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單項選擇題

You work as an application developer at CER-Tech.com. Cert-Tech.com uses Visual studio.NET 2005 as its Application Development platform.You are developing a .NET Framework 2.0 application used to store a type-safe list of names and e-mail addresses. The list will be populated all at ones from the sorted data which means you will not always need to perform insertion or deletion operations on the data. You are required to choose a data structure that optimizes memory use and has good performance.What should you do？（）

A. The System.Collections.Generic.SortedList class should be used
B. The System.Collections.HashTable class should be used
C. The System.Collections.Generic.SortedDictionary class should be used
D. The System.Collections.SortedList class should be used

單項選擇題

您正在開發(fā).NET Framework2.0應用程序用于存儲類型安全列表中的姓名和電子郵件地址。列表中將填充所有在那些從排序的數據，這意味著您不總是需要執(zhí)行插入或刪除對數據的操作。您需要選擇一種數據結構，優(yōu)化內存使用，并且具有良好的性能。你應該做什么？（）

A.應使用 System.Collections.Generic.SortedList 類
B.應使用 System.Collections.HashTable 類
C.應使用 System.Collections.Generic.SortedDictionary 類
D.應使用 System.Collections.SortedList 類

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You work as the application developer at Hi-Tech.com. You create a new custom dictionary named MyDictionary. Choose the code segment which will ensure that MyDictionary is type safe？（）

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You work as the application developer at Hi-Tech.com. You create a new custom dictionary named MyDictionary. Choose the code segment which will ensure that MyDictionary is type safe？（）