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【简答题】
PPP提供了两种不同的身份验证方式:( )和CHAP(质询握手验证协议)。
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举一反三
【单选题】Why would you execute the report obsolete command？（）
A.
To list all backups that were no longer available for restore operations
B.
To list all backups that had aged beyond the RMAN retention criteria
C.
To list all backup set pieces listed in control-file or recovery-catalog metadata that are not on the backup media
D.
To list all datafiles that are no longer part of the database and thus do not need to be backed up
E.
To list all archived redo logs that are no longer needed for any database recovery
【单选题】I asked the teacher if there an English test the next day.
A.
would be
B.
will be
C.
will have
D.
would have
【单选题】After the recovery is complete， which command should you execute？（）
A.
ALTER DATABASE OPEN；
B.
ALTER DATABASE CLEAR LOGFILE；
C.
ALTER DATABASE OPEN RESETLOGS；
D.
ALTER DATABASE OPEN NORESETLOGS；
【单选题】If I had met our Math teacher, I ______ him about the problem. [ ]
A.
would ask
B.
would have asked
C.
asked
D.
must have asked
【简答题】If you execute the order carelessly, they (not place )________ another order with you in the future.
【单选题】菌群失调性腹泻常见的病因是
A.
细菌、真菌、病毒、寄生虫感染
B.
直肠或结肠溃疡、肿瘤或炎症
C.
肠道正常细菌的数量或比例失去平衡
D.
外界的各种刺激,如受寒、过食辛辣食物等
【单选题】He has promised to help you and I'm sure he will keep his _ . [ ]
A.
saying
B.
sentence
C.
word
D.
statement
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