党的十六大修改后的党章对党的建设提出的四项基本要求是（）。 ["坚持党的基本路线","坚持解放思想，实事求是，与时俱进","坚持全心全意为人民服务","坚持民主集中制"]
You have a server that runs Windows Server 2003 Service Pack 2 (SP2). The server contains one volume. You install Certificate Services. You need to back up the Certificates Services database by using the minimum amount of storage space. Which tool should you use? （） [" Certification Authority snap-in"," Certificates snap-in"," Certificate Templates snap-in"," Windows Backu"]
中国人民解放军的纪律，是军队战斗力的（） ["保障前提","重要因素","根本保证","基本依据"]
"对在内容上有抵触的文件和过期的文件要及时作废并妥善处理"的活动，属于职业健康安全管理体系运行中的（）活动。 ["监测方法","信息交流","执行控制程序","文件管理"]
关系数据模型包括（）、（）和关系运算三个方面。
简述课活动教育的作用？
