单项选择题 Youaredevelopinganapplicationtoassisttheuserinconductingelectronicsurveys.Thesurveyconsistsof25true-or-falsequestions.Youneedtoperformthefollowingtasks:Initializeeachanswertotrue.Minimizetheamountofmemoryusedbyeachsurvey.Whichstorageoptionshouldyouchoose?()
单项选择题 You are writing a custom dictionary.The custom-dictionary class is named MyDictionary.You need to ensure that the dictionary is type safe. Which code segment should you use?()
单项选择题 Certkiller.com 希望可以开发一个应用程序存储和检索雇员信息唯一的工作人员的数量。您创建的自定义集合类,该类实现的类型安全的 IDictionary 接口。此集合类被命名为 EmployeeCollection,并使用下面的代码定义。()public class EmployeeCollection : IDictionary {/ / 执行代码}