You are working on Oracle Database 10g, which is in ARCHIVELOG mode. All the archived log files are intact. In which scenario would performing a recovery require the opening of the database with the RESETLOGS option?()
A. loss of a tempfile
B. loss of a system data file
C. loss of one of the control files
D. loss of one of the tablespaces
E. loss of a member from each redo log group
F. loss of the only member of an unarchived redo log grou
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按空间位置,()焊缝为最佳焊缝形式。
A. 平
B. 立
C. 横
D. 仰
尺寸精度要求较高的有色金属的切割可采用()。
A. 气割
B. 等离子切割
C. 线切割
法兰螺丝在坚固后,丝扣的长度以露出螺母2~3扣为宜。
A. 正确
B. 错误