You are creating a Windows Communication Foundation (WCF) service that implements the following service contract.[ServiceContract]public interface IOrderProcessing { [OperationContract] void ApproveOrder(int id);}You need to ensure that only users with the Manager role can call the ApproveOrder method. What should you do?（） In the method body, check the Rights PosessesProperty property to see if it contains Manager。 Add a PrincipalPermission attribute to the method and set the Roles property to Manager。 Add a SecurityPermission attribute to the method and set the SecurityAction to Demand。 In the method body, create a new instance of WindowsClaimSet. Use the FindClaims method to locate a claimType named Role with a right named Manager。
预制楼梯安装前应编制专项施工方案，并经（）批准。 施工总承包技术负责人与总监理工程师。 施工总承包项目负责人与总监理工程师。 施工分包企业技术负责人与总监理工程师。 施工分包企业项目负责人与总监理工程师。
You are working on an existing Web site. You need to secure the Web site by redirecting all users to the logon page, Login.aspx. After logging on, users must be sent back to the page that they originally requested. Which code segment should you use? （） In the Web.config file: <authorization> <deny users="?" /></authorization> On each page in the Web site: Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Load FormsAuthentication.Initialize() End Sub。 On each page in the Web site: Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Load FormsAuthentication RedirectToLoginPage("login.aspx") End Sub。 On each page in the Web site: Protected Sub Page_Load(ByVal sender As Object, _ ByVal e As System.EventArgs) Handles Me.Load Response.Redirect("login.aspx") End Sub。 In the Web.config file: <authentication mode="Forms"> <forms name=".ASPXUSERDEMO" loginUrl="login.aspx" protection="All" timeout="60" /></authentication>。
下列影响项目建设经济规模的因素中，最重要的是（） 市场需求总量。 市场需求总量和供给总量。 项目投资者可能获得的产品市场份额。 市场供给总量。
汽油机燃烧室设计时一般应注意哪几个原则？
最早提出“创作方法”这一概念的是（）
