国家通过免税政策支持社会保险事业。
You need to create a schedule that will run a job on the second Friday of each month. What should the repeat interval of the schedule be set to？（） FREQ = MONTHLY； BYDAY = 2FRI；。 FREQ = MONTHLY； BYDAY = FRI（2）；。 FREQ = MONTHLY； BYDAY = FRI2；。 FREQ = MONTHLY； BYDAY = -2FRI；。
收益法是根据将利求本的思路，采用本金化和折现的方法来判断和估算资产价值的评估方法。
计日工材料从工地现场仓库运至使用地点的人工费和施工机械使用费不包括在计日工材料基本单价内。
You are managing an Oracle Database 11g database with the following backup strategy： 1.On Sunday， an incremental level 0 tape backup is performed. 2.Monday through Saturday， acumulativeincremental level 1 tape backup is performed. Which two statements are true regarding the backups performed（） The backup performed in step 1 backs up all blocks that have ever been in use in the database. 。 The backup performed in step 2 copies all the blocks changed since the most recent level 0 backup.。 The backup performed in step 1 backs up all the blocks changed since the most recent level 1 backup.。 The backup performed in step 2 backs up all blocks that have changed since the most recent incremental backup at level 1.。
一般认为，解决问题的思维过程可分成以下哪几个阶段？（）
