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泵站的动力设备指的是（）。

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社会救助的核心内容是（）。

A. 直接现金救助
B. 基本生活救助
C. 临时物质救助
D. 家庭成员救助

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女性，55岁，农村妇女，家境较差。一日在马路上不慎被车撞倒，当时无昏迷等症状，去当地医院住院诊治并未发现异常，出院时家人无意将住院结算单放于床头。出院后病人像变了个人，白天不做家务，站在路边，称找肇事汽车，喃喃自语，不认识家人，或哭泣或大发脾气，该患者应诊断为（）

A. 癔症
B. 焦虑症
C. 抑郁症
D. 心因性精神障碍
E. 精神分裂症

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我国市场上铂金首饰按铂的含量可分为（）

A. pt900
B. pt950
C. pt970
D. pt990

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Your database runs in NOARCHIVELOG mode， and is backed up every night using RMAN scripts. However， last night your assistant DBA performed a manual operating system backup， instead of running the scripts. Today your database crashed and you now want to use the backups from last night. What do you need todo？（）

A. You need to perform the restore and recover operations manually, because the backup was made manually.
B. First you need to resynchronize the catalog with the control file, and then you can use RMAN to recover the database.
C. First you need to add the backup to the catalog using the CATALOG command, and then you can use RMAN to recover the database.
D. You can just use RMAN and recover the database, because RMAN automatically updates the catalog with the backup information.&e

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