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典型的 a. t_ _ _ _ _ _
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YouareusingOracleDatabase10g.TheLOG_ARCHIVE_FORMATparameterissetto’LOG%t_%s_%r.dbf’.Whyis%rusedinthefilenameformat?()
A.touniquelyidentifythearchivedlogfileswiththerestoreoperationB.touniquelyidentifythearchivedlogfileswiththeredologgroupnumberC.touniquelyidentifythearchivedlogfilesforeachincarnationofthedatabaseD.touniquelyidentifythearchivedlogfileswiththenumberofrecoveryoperationsperformed
考题
Inyourdatabase，youmaybeforcedtoperformarecoveryusingtheRESETLOGSoptionduringwhichtheredologswouldberesettosequencenumber1.Youwanttoavoidtheoverwritingofoldlogfiles.Whicharchivedlogfilenameformatensuresthis？（）A.%t_%s.dbfB.arch_%t.arcC.arch_%d.arcD.arch_%t_%d.arcE.arch_%d_%s_.dbfF.arch_%t_%s_%r.arc
考题
ThedatabaseisrunninginARCHIVELOGmode.Examinetheinitializationparametersandtheirvaluessettoenablearchivingonyourdatabaseserver：LOG_ARCHIVE_FORMAT=arch_%t_%s_%r.arcLOG_ARCHIVE_DEST_1=’LOCATION=/disk1/archive’DB_RECOVERY_FILE_DEST=’/u01/oradata’DB_RECOVERY_FILE_DEST_SIZE=20GWhichstatementistrueregardingthearchivedredologfiles（）A.Itwillbecreatedonthelocalfilesystem.B.ItwillbecreatedonlyintheFlashRecoveryArea.C.ItwillbecreatedinthelocationspecifiedbytheLOG_ARCHIVE_DEST_1parameterandthedefaultlocation$ORACLE_HOME/dbs.D.ItwillbecreatedinthelocationspecifiedbytheLOG_ARCHIVE_DEST_1parameterandlocationspecifiedbytheDB_RECOVERY_FILE_DESTparameter.
考题
YouperformedanincompleterecoveryandopenedthedatabasewiththeRESETLOGSoption.TheLOG_ARCHIVE_FORMATparameterissetto’ora_%t_%s_%r.log’.Whichstatementregardingthearchivedredologfiles，createdinanearlierincarnationofthedatabase，istrue？（）A.Thearchivedredologfileswillbeoverwritten.B.Thearchivedredologfilesaredeletedautomatically.C.Thearchivedredologfilesshouldbemovedtosomeotherlocation.D.Thearchivedredologfilesarestillmaintainedbecausethefilenamesareunique.
考题
You database is running an ARCHIVELOG mode.The following parameter are set in your database instance:LOG_ARCHIVE_FORMAT = arch+%t_%r.arcLOG_ARCHIVE_DEST_1 = ‘LOCATION = /disk1/archive’DB_RECOVERY_FILE_DEST_SIZE = 50GDB_RECOVERY_FILE = ‘/u01/oradata’Which statement is true about the archived redo log files?（）A. They are created only in the location specified by the LOG_ARCHIVE_DEST_1 parameter.B. They are created only in the Fast Recovery Area.C. They are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and in the default location $ORACLE_HOME/dbs/arch.D. They are created in the location specified by the LOG_ARCHIVE_DEST_1 parameter and the location specified by the DB_RECOVERY_FILE_DEST parameter.
考题
请指出下列秩和检验的结果哪个是错误的A．配对计量资料n= 12，T+ =7，T_=71．查得T0.05 =13~ 65，P0. 05B．配对计量资料n=8，T+=12，T_=24，查得T0.05 =3~ 33，P0. 05C．两组计量资料，n1= 12，n2=10，T1= 173，T2=80，查得T0.05=84~146,P0. 05D．两组计量资料n1= 10，n2=10，T1= 55，T2=155，查得T0.05=78~132,P0. 05E．两组计量资料n1=9，n2=13，T1=58，T2 =195，查得T0.05 =73~134，P 0. 05
考题
请指出下列秩和检验的结果哪个是错误的A.配对计量资料n=8，T=12，T_=24，查得T=3～33，P＜0．05
B.两组计量资料n=12，n=10，T=173，T2=80，查得T0．05=84～146．P＜0．05
C.配对计量资料n=12，T=7，T_=7l，查得T0=13～65，P＜0．05
D.两组计量资料n=10，n=10，T=55，T2=155，查得T0．Q5=78-132．P＜0．05
E.两组计量资料n=9，n=13，T=58，T2=195，查得T=73～134．P＜0．05
考题
关于先天性肾上腺皮质增生症21羟化酶缺陷，错误的是A.典型的发病率高于非典型
B.典型为重型，非典型为轻型
C.典型分为失盐型和单纯男性化型
D.分为典型和非典型
E.典型的发病率低于非典型
考题
在MQH公式中，Q ̇/（C_p ρ_∞ T_∞ A_V √（gh_V ))是放热与吸热比，因此是无量纲的放热项。那么，（h_K A_S)/（C_p ρ_∞ A_V √（gh_V ))代表什么？A．无量纲的散热项；B．无量纲的产热项；C．无量纲的蓄热项；D．无量纲的发热项；
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