You want the ability to recovery any time within the last seven days and therefore you configured the recovery window retention policy using the command： RMAN> CONFIGURE RETENTIOH POLICY TO RKCOVFRY WINDOW OF 7 DAYS； After configuring the recovery window， you performed the database backup as follows：（） [" Backup RB1 at log sequence number 12871 on 5th Jan"," Backup RB2 at log sequence number 15622 on 12th Jan"," Backup RB3 at log sequence 16721 on 15th Jan"," On 20th Jan when the log sequence number was 18112 you realize that there Is a need to a point in time at the beginning of the recovery window. You have all an hived redo log files to date."]
被审计单位应当自接到审计报告之日起（）日内，将其书面意见送交审计组或者审计部门？ ["十","五","二十","十五"]
Identify three situations in which you would NOT be able to drop a tablespace. （） ["when the tablespace is online","when the tablespace has segments with data in it","when the tablespace is a default permanent tablespace for the database","when the tablespace contains a table that is currently being used by transactions","when the tablespace contains undo data that is needed to rollback an uncommitted transactio"]
投标文件未按照要求密封或者逾期送达，招标人可以拒绝接收。
An existing master-slave setup is currently using a delayed replication of one hour. The master has crashed and the slave must be "rolled forward" to provide all the latest data. The SHOW SLAVE STATUS indicates the following values: RELAY_LOG_FILE =hostname-relay-bin.00004 RELAY_LOG_POS = 1383 Which command set would make the slave current?（） ["STOP SLAVE; CHANGE MASTER TO MASTER_DELAY =0, RELAY_LOG_FILE = 'hostnamerelay- bin.00004' , RELAY_LOG_POS= 1383","STOP SLAVE; CHANGE MASTER TO RELAY_LOG_FILE = 'hostname-relay-bin.00004', RELAY_LOG_POS = 1383","STOP SLAVE; CHANGE MASTER TO MASTER_DELAY=0; START SLAVE","STOP SLAVE; SET GLOBAL master_delay =0; START SLAVE"]
零件在高速旋转时，由于（）偏移，将产生一个很大的离心力而引起机器的振动。
