元数据
You want to take a complete database backup using RMAN. The backup should consist only the used blocks from your database. Which two statements are true about this backup operation? （）(Choose two.) Backup compression should be enabled。 Parallelism for the channel should be set to 2。 All the files must be backed up as backup sets。 The backup may be stored either on disk or on media with media manager。
水利稽查的综合功能不包括以下哪个选项（） 检查。 调节。 反馈。 提高。
过电流方向保护是在过流保护的基础上，加装一个（）而组成的。 负序电压元件。 复合电流继电器。 方向元件。
Which two statements are true about the Automatic Diagnostic Repository (ADR)?（） (Choose two.) The ADR base keeps all diagnostic information in binary format。 SQL*Plus provides the ADRI script, which can be used to work with ADR。 The ADR can be used for problem diagnosis only when the database is open。 The ADR can be disabled by settting the DIAGNOSTIC_DEST parameter to null。 The ADR can be used for problem diagnosis even when the database instance is down。 The ADR base is shared across multiple instance。
师某，男性，65岁。腰麻下行前列腺切除术后12h，烦躁不安，生命体征平稳。查体见：下腹胀隆，叩诊呈浊音，首先考虑（）
