绝对压力
运用使用年限法估测设备的成新率涉及到的三个基本参数是()。 ["设备的经济寿命","设备的技术水平","设备的已使用时间","设备的负荷程度","设备的尚可使用年限"]
Your database is in manual archive mode. Your online redo log groups are configured as follows: You discover that DISK 3 has encountered a media failure that has resulted in a loss of all the multiplexed copies of online redo log files. You decide to delete the REDO01C.LOG, REDO02C.LOG, and REDO3C.LOG files to prevent the LGWR background process from attempting to access these files. When you query the V$LOG dynamic view, you receive the following output: Which sequence of statements should you use to drop the missing online redo log files from the database?() 1. ALTER DATABASE DROP LOGFILE MEMBER ’E:\REDO01C.LOG’; 2. ALTER SYSTEM SWITCH LOGFILE; 3. ALTER DATABASE DROP LOGFILE MEMBER ’E:\REDO03C.LOG’; 4. ALTER SYSTEM ARCHIVE LOG GROUP 3; 5. ALTER DATABASE DROP LOGFILE MEMBER ’E:\REDO02C.LOG’; 6. ALTER SYSTEM ARCHIVE LOG GROUP 1; [" 5, 3, 2, and 1"," 1, 5, 3, and 2"," 4, 3, 2, 5, 1, and 6"," 5, 4, 3, 2, 6, and 1"]
对于自动立体仓库来说,目前该技术还处于初级阶段,但它是未来发展方向的技术是() ["机械化仓储","自动化仓储","集成自动化仓储","智能自动化仓储"]
资产是指企业拥有或者控制的能以货币计量的经济资源,包括()、债权和其它权利。
当代学生角色扮演有哪些冲突和变化?