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车辆检修周期

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锅炉筒体的主要尺寸应符合()。

A. 规范要求
B. 标准图集
C. 设计要求

党的十八大报告指出,要加快形成科学有效的社会管理体制,完善社会保障体系,健全基层公共服务和社会管理(),建立确保社会既充满活力又和谐有序的体制机制。

A. 格局
B. 网络
C. 体系
D. 环境

车用油的作用()、()、()、()。

You are in the middle of a transaction updating a very important table. The machine on which a database wasrunning reboots because of power outage. This caused a database instance failure. Which statement is true inthis situation()

A. The online redo log files and archived redo log files are required to accomplish the recovery.
B. The uncommitted transaction will be committed at the next startup of the database instance.
C. The uncommitted transaction is rolled back automatically at the next opening of the database.
D. The DBA has to perform the recovery on the database to recover the uncommitted transactio

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