Nowadays people spend more time exercising to keep().
A. fitly
B. fitting
C. fit
1.Previous studies show that parents tend to be aware of sleep problems in older children and adolescents and that pediatric practitioners are ( ) likely to identify sleep problems in these age group.:A、less…lessB、less…moreC、more…lessD、more…more
2.YouaremaintainingyourdatabaseinOracle10g.Youwanttostoretheinformationaboutthebackupofthedatabaseinthecontrolfile.Youissuethefollowingstatement:SQL>ALTERSYSTEMSETCONTROL_FILE_RECORD_KEEP_TIME=400;Whatistheoutcomeofthisstatement?()A.Thestatementwillnotexecutesuccessfully.B.Thestatementwillexecutesuccessfully,andthebackupsmetadatawillbemaintainedinthecontrolfilefor400daysC.Thestatementwillexecutesuccessfully,andthebackupsmetadatawillbemaintainedintherecoverycatalogfor400days.D.Backupswillbedeletedfromthemediaafter400days.
3.AfteranumberofdayssetbytheparameterCONTROL_FILE_RECORD_KEEP_TIME,theinformationinthecontrolfileisoverwrittenbyRMAN.Whatisthisparameter’sdefaultvalue?()A.1dayB.5daysC.7daysD.31days
4.AnRMANbackupjobfails,displayingthefollowingerrormessage:ORA19809:limitexceededforrecoveryfilesYouranalysisshowsthattheFlashRecoveryareaisfull.Whatwouldyoudotoresolvetheerror?()A.increasethevalueofUNDO_RETENTIONB.changethevalueofWORKAREA_SIZE_POLICYtoAUTOC.increasethevalueofDB_RECOVERY_FILE_DEST_SIZED.increasethevalueofCONTROL_FILE_RECORD_KEEP_TIME
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12、装扮应遵循TPO原则,以下哪一个选项不属于TPO原则?
A.T是time,时间
B.P是Place,地点
C.O是Occasion,场合
D.P是People,人物
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在R中回归模型为fit,如何查看模型fit信息?