Using the LIST command in Recovery Manager (RMAN), which two pieces of information from the RMAN repository can be listed?（） Stored scripts in the recovery catalog。 Backups that can be deleted from disk。 Backup sets and images copies that are obsolete。 Backups that do not have the AVAILABLE status in the RMAN repository。
能够燃烧的永久气体共有（）种。 17。 11。 9。 4。
饭店的目标应是（）。饭店的根本经营宗旨是（）。
土壤耕作
An administrator needs to configure a server (192.168.22.22) as a temporary solution for an NTP master that has stopped working. What is the process for configuring the NTP master?（） Edit the /etc/ntp.conf file changing the server line to 'server 127.127.1.0' and add the line 'fudge 127.127.1.0 stratum 0', and then refresh the daemon.。 Edit the /etc/ntp.conf file changing the server line to 'server 127.127.1.0' and add the line 'master 127.127.1.0 stratum 0', and then refresh the daemon.。 Edit the /etc/ntp.conf file changing the server line to 'server 192.168.22.22' and add the line 'fudge 192.168.22.22 stratum 0', and then refresh the daemon.。 Edit the /etc/ntp.conf file changing the server line to 'server 192.168.22.22' and add the line 'master 192.168.22.22 stratum 0', and then refresh the daemon.。
在管道动火施工时，首要任务是保证（）
