短行程单相交流制动电磁铁线圈温度不许超过（） ["110℃","120℃","115℃","125℃"]
危险化学品有哪几类？
管理信息系统的三大核心技术是网络技术、（）和（）
导水机构安装主要技术要求有哪些？
You develop a Web application that writes data to a file on a server. You restrict access to the file to specific Windows users. The Web application runs as CONTOSO\ASPNET. You deny anonymous access to the application in IIS. You add the following XML segment in the Web.config file.You need to ensure that the application meets the following requirements:It must impersonate the user when it writes data to the file.It must run as CONTOSO\ASPNET when a user does not access the file. Which two actions should you perform? （） [" Use the following XML segment in the Web.config file. <identity impersonate="false"\/>"," Use the following XML segment in the Web.config file. <identity impersonate="true"\/>"," Use the following code segment to access the file. Dim wp As WindowsPrincipal = _CType(HttpContext.Current.User, WindowsPrincipal) Dim wi As WindowsIdentity = WindowsIdentity.GetCurrent() Dim wic As WindowsImpersonationContext = wi.Impersonate()' Access the file herewic.Undo()"," Use the following code segment to access the file. Dim wi As WindowsIdentity = WindowsIdentity.GetCurrent()Dim wic As WindowsImpersonationContext = _WindowsIdentity.Impersonate(wi.Token)' Access the file herewic.Undo()"]
农业在经济发展中的作用是什么？
