During the implement phase， systems acceptance testing provides which two of the following services for the customer（） It installs， configures， and verifies monitoring tools and processes in accordance with the operations implementation.。 It verifies that the Cisco Unified Communications solutions is ready for production.。 It verifies that the Cisco Unified Communications solution meets their business and technical requirements.。 It executes and verifies the migration plan by migrating network services from an existing state to a future state.。 It provides automated tools for measuring system performance under load.。
You are performing a block media recovery on the tools01.dbf data file in the SALES database using RMAN. Which two statements are correct in this scenario？（） You must ensure that the SALES database is mounted or open.。 You must restore a backup control file to perform a block media recovery.。 You must take the tools01.dbf data file offline before you start a block media recovery.。 You must put the database in NOARCHIVELOG mode to perform a block media recovery.。 You can perform only a complete media recovery of individual blocks， point-in-time recovery of individual data blocks is not supported.。
仪表刻度盘的符号及意义MvAr（），vAr（）。
原型化生命周期由10个步骤组成。但这些步骤中（）是其中的基本步骤，也是每个软件原型化工作中必须要经历的步骤。 原型系统的积累。 开发工作模型、模型验证。 修正和改近。 整理原型和提供文档。
乙类项目管理单位必须具备以下基本条件：净资产（）万元人民币以上； 500。 600。 700。 800。
卤代烷灭火剂可用于扑救（）
