Which command can be used to display information from the PvDv object class in the ODM?()  
A、odmlist
B、odmshow
C、lsdev -P
D、lsattr -El
A、odmlist
B、odmshow
C、lsdev -P
D、lsattr -El
A、@ command([back]) B、@ command([fileexit]) C、@ command([gotoview]) D、@ command([fileclosewindow])
A、Runlevel:Action:Identifier:Command B、Identifier:Runlevel:Action:Command C、Command:Action:Identifier:Process D、Process:Runlevel:Command:Identifier
A、are mandatory B、specify action group ExecuteCommandActionGroup for Controller commands C、specify action group ViewCommandActionGroup for View commands D、specify resource group ControllerCommandResourceGroup for Controller commands E、specify resource group ViewCommandResourceGroup for View commands
A、A.the DBNEWID utility B、B.the ANALYZE command C、C.the RMAN LIST command D、D.the RMAN REPORT command E、E.the RMAN CROSSCHECK command F、F.the RMAN BLOCKRECOVER command