简述科研选题的基本原则。
You are the newly appointed administrator at Certkiller.com. You are in the process of creating anASP.NET application using Microsoft .NET Framework v3.5. During routine monitoring you discover that a JavaScript code fragment in the AJAX application isnot exhibiting the desired behavior. You notice an error icon in the status bar of Microsoft InternetExplorer but is does not prompt you to debug the script. You need to determine the appropriateaction you should take in order to configure Internet Explorer to prompt you to debug the script. What should you do？（） ["You should consider clearing the Disable Script Debugging (Other) check box.","You should consider selecting the Display a notification regarding every script error check box.","You should consider selecting the Enable third-party browser extensions check box.","You should consider clearing the Disable Script Debugging (Internet Explorer) check box.","You should consider selecting the Show friendly HTTP error messages check box."]
滴管工具是用于吸取画面中矢量线、矢量色块、位图等相关属性的设置，直接应用于另外的（）。 ["位图对象","文字","矢量对象","动画元素"]
信息系统文档主要包括（）、（）、（）、（）及（）。
Your network contains a Web server named server1. contoso.com. All client computers on the network run Windows XP Professional. Server1. contoso.com is located in a remote site. You suspect a communication problem between a computer and server1. contoso.com. You need to view the amount of packet loss occurring on each network segment between the computer and server1. contoso.com. What should you do?（） ["Repair the local area connection. ","Review the status for the local area connection. ","At the command prompt, run tracert server1. contoso.com.","At the command prompt, run pathping server1. contoso.com."]
生物毒性作用
