题目内容

油品检实尺，按照《液体石油产品静电安全规定》，规定检尺时上提速度不大于（）。

A. 0.5m/s
B. 1m/s
C. 2.5m/s
D. 4m/

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You have recovered your Oracle Database 10g by using the control file backup because all copies of the current control file have been lost due to a media failure. You open your database by using the following statement： SQL>ALTER DATABASE OPEN RESETLOGS； Which of the following options is true about using the RESETLOGS option？（）

A. The log sequence is reset to 0.
B. All the online redo logs are deleted.
C. All the archived redo logs from a previous incarnation become useless.
D. The full database backup taken from a previous incarnation can be used in future.
E. Only the control file and online redo log files are updated with a new RESETLOGS SCN and time stamp.

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