[单选] Which new key architectural element introduced in WebLogic Server l2c should you take  advantage of when designing Disaster Recovery Centers with active - passive mode?（）

按照产业发展趋势可把产业划分为（） A.朝阳产业 。 B.传统产业 。 C.夕阳产业 。 D.高技术产业 。 E.基础产业。 线路两侧的保护装置，当发生短路故障时，其中一侧保护装置先动作，等它动作跳闸后，另一侧保护装置才动作，这种情况称为（）。 不正确动作。 相继动作。 保护死区。 You enabled block change tracking for faster incremental backups in your database. Which background process writes to the change tracking file？（）  RBAL。  CKPT。  SMON。  PMON。  MMON。  CTWR。  DBWR。 A warehouse fact table in your Oracle 12c Database is range-partitioned by month and accessed frequently with queries that span multiple partitions The table has a local prefixed, range partitioned index. Some of these queries access very few rows in some partitions and all the rows in other partitions, but these queries still perform a full scan for all accessed partitions. This commonly occurs when the range of dates begins at the end of a month or ends close to the start of a month. You want an execution plan to be generated that uses indexed access when only a few rows are accessed from a segment, while still allowing full scans for segments where many rows are returned. Which three methods could transparently help to achieve this result?（） Using a partial local Index on the warehouse fact table month column with indexing disabled to the table partitions that return most of their rows to the queries.。 Using a partial local Index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.。 Using a partitioned view that does a UNION ALL query on the partitions of the warehouse fact table, which retains the existing local partitioned column.。 Converting the partitioned table to a partitioned view that does a UNION ALL query on the monthly tables, which retains the existing local partitioned column。 Using a partial global index on the warehouse fact table month column with indexing disabling for the table partitions that return most of their rows to the queries.。 Using a partial global index on the warehouse fact table month column with indexing disabled for the table partitions that return a few rows to the queries.。 国家多渠道筹集社会保险资金。县级以上人民政府对社会保险事业给予必要的经费支持。 Which new key architectural element introduced in WebLogic Server l2c should you take  advantage of when designing Disaster Recovery Centers with active - passive mode?（）