你正在开发一个 Web 应用。依据用户身份的不同，你在代码中限制了某些用户对某些页面的访问。你需要配置 IIS，让你的 Web 应用支持 Windows 身份认证，你应该如何做？（）

A. Wizard1.RequireEmail = true;
B. Wizard1.Email = “user@address.com”;
C. Wizard1.MailDefinition.From = “registration@mysite.com”;
D. SmtpMail.SmtpServer = “mail.contoso.com”;

A. <allow verbs="GET" users="*" /><deny verbs="POST" users="*" /><allow verbs="POST"roles="Administrators" />
B. <allow role s="Administrators" /><deny users="*" />
C. <allow users="Administrators" /><allow users="*" />
D. <allow verbs ="POST" roles="Administrators" /><deny verbs="POST" users="*" /><allow verbs="GET" users="*" />

A．XmlDocument doc = new XmlDocument();doc.Load("subscribers.xml");XmlDeclaration xmldecl = doc.CreateXmlDeclaration("encoding", "Unicode");
B．XmlDocument doc = new XmlDocument();doc.Load("subscribers.xml"); XmlDeclaration xmldecl = doc.CreateXmlDeclaration("1.0", null, "yes");
C．XmlDocument doc = new XmlDocument(); doc.Load("subscribers.xml"); XmlDeclaration xmldecl = doc.CreateXmlDeclaration("1.0", "Unicode", "yes");
D．XmlDocument doc = new XmlDocument(); doc.Load("subscribers.xml"); XmlDeclaration xmldecl = doc.CreateXmlDeclaration("1.0", "Unicode");