Examine this statement: RMAN >BACKUP FORMAT ’/BACKUP/df_%d_%s_%p.bus1 DATABASE filesperset = 2; What state must the target database be in for you to use this RMAN command?() ["The target database must be open.","The target database must be closed.","The target database must be mounted.","The target database must be mounted or open."]
“()小说”的概念是康有为提出的。
固体润滑剂缺点
系统发生故障时,短路点要通过很大的()电流,此电流引起的()可能烧毁电气()。
段塞流捕集器的作用是什么?
论述资产评估的收益法。