多选题Which two statements are true with respect to the maintenance window？（） .AA DBA can enable or disable an individual task in all maintenance windows.BA DBA cannot change the duration of the maintenance window after it is created.CIn case of a long maintenance window，all Automated Maintenance Tasks are restarted every four hours.DA DBA can control the percentage of the resource allocated to the Automated Maintenance Tasks in each window
多选题
Which two statements are true with respect to the maintenance window？（） .
A
A DBA can enable or disable an individual task in all maintenance windows.
B
A DBA cannot change the duration of the maintenance window after it is created.
C
In case of a long maintenance window，all Automated Maintenance Tasks are restarted every four hours.
D
A DBA can control the percentage of the resource allocated to the Automated Maintenance Tasks in each window
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