初级生产者
对管道分段进行气压试验时，升压速度不宜过快，每小时不宜超过（） 1MPA。 3MPA。 5MPA。 10MPA。
Your database is in NOARCHIVELOG mode. The database has three online redo log groups， and each group contains three online redo log members. The online redo log members are stored across three hard disks， E， F， and G， respectively. Hard disk G crashed while the LGWR background process was writing redo information to the online redo log files. What effect will this crash have on the database？（） The database will operate normally without generating any redo.。 The database will hang， and you must shut down and restart the instance.。 The database will crash， and you must recover the database from the point of failure.。 The database will operate normally and will generate minimal redo for the tables created with the NOLOGGING clause.。
下列资产中属于流动资产的是（）。 现金和各项存款。 应收账款。 存货。 短期投资。 预付款。
本侧高频保护故障时，对侧高频保护（）。 继续正常工作。 投信号位置。 退出运行。
According to your backup strategy， you performed an incremental level 0 backup of yourdatabase. Which statement regarding this backup is true？（）
