第（）类医疗器械实行产品备案管理。
为什么说山羊不是酿成沙尘暴的罪魁祸首？
You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. A SQL Server Agent job is failing. You find that the job history information is incomplete and seems to be truncated after you review it. All information produced by a job must be available for viewing. So what action should you perform to achieve this goal? （） ["You should enable notifications to the Windows application event log when the job completes. ","You should enable write OEM file ","You should enable all job steps, making them send the output to a file ","You should include execution trace messages in the SQL Agent Error log"]
你如何重定向一个指定页面到桌面计算机或移动设备？（） ["if (Request.Browser["IsMobileDevice"] == "true") Response.Redirect("MobileDefault.aspx"); else Response.Redirect("DesktopDefault.aspx"); end if","if (Request.Cookies.IsMobileDevice) Response.Redirect("MobileDefault.aspx"); else Response.Redirect("DesktopDefault.aspx"); end if","if (Request.Browser.IsMobileDevice) Response.Redirect("MobileDefault.aspx"); else Response.Redirect("DesktopDefault.aspx"); end if","if (Request.Cookies["IsMobileDevice"] == "true") Response.Redirect("MobileDefault.aspx"); else Response.Redirect("DesktopDefault.aspx"); end if"]
国际多式联运必须符合下列条件（）。 ["依据国际多式联运合同","至少有两种不同的运输方式","多式联运经营人将货物从一国境内运送至另一国境内","以集装箱为媒介"]
第（）、（）类医疗器械实行产品注册管理。
