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500千伏及以上新建输变电工程项目，每个项目必须设立一个业主项目部。

A. 正确
B. 错误

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电子现金脱机消费不允许撤销，但支持退货，退货后资金退入以下账户中（）。

A. 电子现金主账户
B. IC卡主账户
C. 电子现金附属帐户

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我国下列天文成就，产生于先秦时期的有（）。①最早记录太阳黑子②最早记录哈雷慧星③最早的天文学著作

A. ①②③
B. ②③
C. ①③
D. ①②

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An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache. How would you guarantee that the blocks for the table never age out?（）

A. Configure the KEEP buffer pool and alter the table with the corresponding storage clause.
B. Increase the database buffer cache size.
Configure the RECYCLE buffer pool and alter the table with the corresponding storage clause.
D. Configure Automata Shared Memory Management.
E. Configure Automatic Memory Management

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You are working on a CATDB database that contains an Oracle Database version 11.1 catalog schema owned by the user RCO11. The INST1 database contains an Oracle Database version 10.1 catalog schema owned by the user RCAT10. You want the RMAN to import metadata for database IDs 1423241 and 1423242， registered in RCAT10， into the recovery catalog owned by RCO11. You executed the following commands： RMAN> CONNECT CATALOG rco11/password@catdb RMAN> IMPORT CATALOG rcat10/oracle@inst1 NO UNREGISTER； Which two statements are true regarding the tasks accomplished with these commands？（）

A. They import all metadata from the RCAT10 catalog.
B. They unregister the database from the RCAT10 catalog.
C. They do not register the databases registered in the RCAT10 catalog.
D. They register all databases registered in the RCAT10 catalog.

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500千伏及以上新建输变电工程项目，每个项目必须设立一个业主项目部。

A. 正确 B. 错误

电子现金脱机消费不允许撤销，但支持退货，退货后资金退入以下账户中（）。

我国下列天文成就，产生于先秦时期的有（）。①最早记录太阳黑子②最早记录哈雷慧星③最早的天文学著作

An application accesses a small lookup table frequently. You notice that the required data blocks are getting aged out of the default buffer cache. How would you guarantee that the blocks for the table never age out?（）

A. 正确
B. 错误