Quality of service is analyzed at which service component within the Cisco Unified Communications plan phase（） ["Network Readiness Assessment","Application Readiness Assessment","Site Readiness Assessment","Operation Readiness Assessment"]
对于分级绝缘的变压器，中性点不接地或经放电间隙接地时，应装设（）和（），以防止发生接地故障时出现过电压而损坏变压器。
以下代码使用StreamReader从文件（“c：\boot.ini”）中读取信息，并将读取的信息显示在文本框中TextBox2中。请根据程序代码中的注释将程序补充完整。
Which one of the following RMAN commands is used to register the database files with repository that were backed up using O/S commands？（） ["CHANGE","CATALOG","CROSSCHECK","SWITCH"]
《公路工程预算定额》（2007版）在附录四中列出了“预应力钢绞线吊索”这一材料名称以及其特征值。
教师个人修养与行为有哪些？（3分）
