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皮皮学刷刷变学霸
举一反三
【单选题】If the package is wrapped well, we _______ the contents are also intact (完好无恙的).
A.
assumption
B.
assumed
C.
presumed
D.
assume
【单选题】You are using recovery Manager (RMAN) with a recovery catalog to backup up your production database. The backups and the archived redo log files are copied to a tape drive on a daily basis. The databa...
A.
Open the database in NORMAL mode
B.
Open the database in read-only mode
C.
Open the database in RESTRICTED mode
D.
Open the database with the RESETLOGS option
【单选题】Intact buoyancy is a term used to describe ().
A.
The volume of all intact spaces above the waterline
B.
An intact space below the surface of a flooded area
C.
An intact space which can be flooded without causing a ship to sink
D.
The space at which all the vertical upward forces of buoyancy are considered to be concentrated
【单选题】下列实验操作与安全事故处理正确的是 [ ]
A.
除去KCl溶液中的少量MgCl 2 ：加入适量KOH溶液，过滤
B.
用点燃的火柴在液化气钢瓶口检验是否漏气
C.
用试管夹从试管底由下往上夹住距离管口约2/3处，手持试管夹长柄末端，进行加热
D.
除去碳酸钠溶液中的少量碳酸氢钠：对溶液进行加热
【简答题】反射弧由 、 、 、 、 五部分组成
【单选题】You are using Recovery Manager (RMAN) for backup and recovery operations with a recovery catalog. You have been taken database backups every evening. On November 15, 2007, at 11:30 AM, you were inform...
A.
A
B.
B
C.
C
D.
D
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