Which components are needed for successful and most efficient recovery.（） The backup RB3 and the current online redo log files。 the backup RB2 and the archived redo log files after the log sequence number 15622。 Backup R81 and the archived redo log hies after the log sequence number 12871。 The backup RB3 and the archived redo log files after the log sequence number 16721。
You have configured Automatic Shared Memory Management. Which four memory structures would be automatically tuned？ （） log buffer。 Java pool。 Large pool。 Fixed SGA。 Shared pool。 Streams pool。 Keep buffer cache。 Database buffer cache。
班级保教工作除了具有更直接的目的性、教育性、全面整体性，还具有（）。 集体性。 主导性。 创造性。 开放性。
依据光照因子分类
You use the segment advisor to help determine objects for which space may be reclaimed. Which three statements are true about the advisor given by the segment advisor?（） It may advise the use of online table redefinition for tables in dictionary managed tablespace.。 It may advise the use of segment shrink for tables in dictionary managed tablespaces it the no chained rows.。 It may advise the use of online table redefinition for tables in locally managed tablespaces。 It will detect and advise about chained rows.。 It may advise the use of segment shrink for free list managed tables.。
下面哪一个最确切地叙述了类固醇激素作用的跨膜信号转导过程（）
