单项选择题
A. Use System.Web.UI.TemplateControl to group the UI elements.
B. Use System.Web.UI.HtmlControls.HtmlControl to group the UI elements.
C. Use System.Web.UI.LiteralControl to group the UI elements.
D. Use System.Web.UI.WebControls.Literal to group the UI elements.
多项选择题 You are creating a custom user control. The custom user control will be used on 10 Web Forms for an ASP.NET Web site that allows users to register and log on to a personalized experience. The custom user control uses two TextBox controls and two Button controls. You need to ensure that the controls are visible only when users are not logged on to the Web site. You also need to minimize the amount of effort in development and maintenance for the Web site. Which two actions should you perform? （）
多项选择题 You are creating a custom user control. The custom user control will be used on 10 Web Forms for an ASP.NET Web site that allows users to register and log on to a personalized experience.The custom user control uses two TextBox controls and two Button controls.You need to ensure that the controls are visible only when users are not logged on to the Web site. You also need to minimize the amount of effort in development and maintenance for the Web site. Which two actions should you perform?（）
单项选择题 You create an application. The application processes hundreds of XML documents per minute. The XML documents are validated against inline schemas.You need to load XML documents from the file system and read them as quickly as possible. XML comments must be ignored while reading the XML documents. What should you do?（）