题目内容
遇列车调度电话不通时，闭塞法的变更或恢复，应由该区间（）的车站值班员确认区间空闲后，直接以电话记录办理。
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Assume your situation can be described as follows： x A full backup taken using RMAN is available on disk. x The current control files were NOT damaged and do not need to be restored. x All data files are damaged or lost. x The database is in NOARCHIVELOG mode. Which RMAN command would be most appropriate to use in line 3 of the following RMAN command set to restore and fully recover your database？（） 1. RMAN> STARTUP MOUNT 2. RMAN> RESTORE DATABASE; 3. RMAN> （） 4. RMAN> ALTER DATABASE OPEN;
当二极管反向击穿时（）。
客人在店期间死亡，怎么办？
高等学校科学研究始于（）。
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