题目内容

YoudiscoverthataparticulargroupofsettingsnamedUserPreferenceschanges.YouneedtostoretheUserPreferencesettingstopreventaffectingotherapplications.Whichtwoactionsshouldyouperform？（）

A. UsetheProperties.USerPreferencesobject
B. UsetheProperties.Settings.Default.Userprefencesobject
C. UsetheConfigurationManager.AppSettingsobjectduringruntime
D. CreatethesettingsbyusingApplicationscope
E. CreatethesettingsbyusingUserscope

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