You defined the Recovery Manager (RMAN) retention policy to recovery window of 7 days by executing the following command: RMAN> CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 7 DAYS; When a backup is performed, what would be the status of this backup after seven days?() [" The backup would be marked as invalid."," The backup would be marked as obsolete."," The backup would be removed from the media."," The backup would be removed from the RMAN repository."]
已知某公交线路行车分为上午和下午两班,在一个工作班内冬季行车30班,夏季行车28班;线路驾驶员年额定工作日268天,出勤率为92%。求该线路驾驶员的定员人数为多少?
举例说明“京派小说”与“京味小说”的主要区别。
A programmer must create a generic class MinMax and the type parameter of MinMax must implementComparable. Which implementation of MinMax will compile?() ["

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悬挑空调板的受力钢筋应分布置在板的() ["上部","中部","底部","端部"]
禅宗宗旨主要有两点,即()、()。