快速跑的教学重点是（），背越式跳高的教学重点是（）。
The Database Resource Manager is automatically enabled in the maintenance window that runs the Automated Maintenance Task. What is the reason for this?（） [" to prevent the creation of an excessive number of scheduler job classes"," to allow the Automated Maintenance Tasks to use system resources without any restriction"," to allow resource sharing only among the Automated Maintenance Tasks in the maintenance window"," to prevent the Automated Maintenance Tasks from consuming excessive amounts of system resource"]
锅炉燃煤二次风的作用是（）。
某工程整体2层地下室、主楼地上12层、裙房地上4层，钢筋混凝土全现浇框架剪力墙结构，填充墙由小型空心砌块砌筑。基础为整体筏板，地下室外墙为整体剪力墙混凝土刚性防水，外加SBS卷材防水层。平整场地结束后.施工单位马上进行了工程定位和测量放线，然后进行土方开挖工作。整个基坑采取大放坡开挖，土方开挖至设计要求时，项目总工程师组织监理进行基坑验槽。经钎探检查，发现基坑内裙房部位存在局部软弱下卧层，项目总工召开现场会议，经协商决定采取灌浆补强，并按要求形成相关验收记录。本工程土方开挖时应检查的内容？开挖后应检查哪些内容？
What will be the end result of this set of RMAN commands？（） shutdown abort startup mount restore datafile 4 until time ，，09/30/2008：15：00：00； recover datafile 4 until time ，，09/29/2008：15：00：00； alter database open resetlogs； [" Datafile 4 will be recovered until 9\/30\/2008 at 15：00 and the database will open."," The restore command will fail."," The recover command will fail."," The alter database open resetlogs command will fail."," All these commands will fail because they must be in the confines of a run block."]
基于“学习共同体”的学校改革，以“（）”、串联儿童思考，反刍教材表述作为教学的基本要素。
