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Nowadays people spend more time exercising to keep().
A. fitly
B. fitting
C. fit
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AnRMANbackupjobfails,displayingthefollowingerrormessage:ORA19809:limitexceededforrecoveryfilesYouranalysisshowsthattheFlashRecoveryareaisfull.Whatwouldyoudotoresolvetheerror?()
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AfteranumberofdayssetbytheparameterCONTROL_FILE_RECORD_KEEP_TIME,theinformationinthecontrolfileisoverwrittenbyRMAN.Whatisthisparameter’sdefaultvalue?()
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Chandler, Inc,relies on its employees to __________ their own judgment when accepting paid speaking engagements.A.exercise
B.exercised
C.exercises
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价格；条款；花费（ ）。
A.price；spend；terms
B.price；spend；terms
C.price；terms；spend
D.terms；price；spend
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Lower taxes would spur investment and help economic growth.A:attract
B:encourage
C:require
D:spend
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在R中回归模型为fit，如何查看模型fit信息？
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