單項(xiàng)選擇題

您正在開發(fā).NET Framework2.0應(yīng)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(shù)據(jù)，這意味著您不總是需要執(zhí)行插入或刪除對數(shù)據(jù)的操作。您需要選擇一種數(shù)據(jù)結(jié)構(gòu)，優(yōu)化內(nèi)存使用，并且具有良好的性能。你應(yīng)該做什么？（）

A.應(yīng)使用 System.Collections.Generic.SortedList 類
B.應(yīng)使用 System.Collections.HashTable 類
C.應(yīng)使用 System.Collections.Generic.SortedDictionary 類
D.應(yīng)使用 System.Collections.SortedList 類

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多項(xiàng)選擇題

You create Microsoft Windows-based applications. You create an application that requires users to be authenticated by a domain controller. The application contains a series of processor intensive method calls that require different database connections. A bug is reported during testing. The bug description states that the application hangs during one of the processor-intensive calls more than 50 percent of the times when the method is executed. Your unit test for the same method was successful.You need to reproduce the bug. Which two factors should you ascertain from the tester？（）

A. Security credentials of the logged on user
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單項(xiàng)選擇題

您最近創(chuàng)建了一個(gè)名為ShoppingList 的自定義集合類為當(dāng)?shù)氐某?。此自定義的類將包含 ShoppinItem 對象具有下面列出的公共屬性。* Name* AisleNumber* OnDiscount你要使您的類來循環(huán)訪問 ShoppingList 集合中，并列出每個(gè)產(chǎn)品的Name和AisleNumber，使用 foreach 語句。要實(shí)現(xiàn)這一目標(biāo)的聲明相應(yīng)的代碼。您應(yīng)該使用哪個(gè)代碼？（）

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