题目内容

根据交通部规则规定，收费棚净高必须大于（）。

A. 4.5m
B. 5m
C. 6m
D. 4m

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You work as the application developer at Certkiller .com. Certkiller .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 well 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

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