双馈异步发电机的三种运行状态:()为转子的机械转速()发电机的同步转速;()为转子的机械转速等于发电机的同步转速;()为转子的机械转速()发电机的同步转速。
根据高层货架的构造形式,目前使用最广、最通用的一种立体仓库形式是() 贯通式。 单元货格式。 垂直循环式。 水平循环式。
选择联盟战略伙伴应考虑()。 地理位置。 能力。 承诺。 兼容性。 结构合理。
Your company has two SQL Server 2005 computers named SQL1 and SQL2. A user in your company named Eric writes many ad hoc queries against the company databases. Eric has access to the Customer database on SQL1. He does not have access to the Sales database on SQL2. You need to ensure that Eric can write queries that join information from both servers. What should you do first?() Create a linked server on SQL1 to SQL2. Configure the linked server to use impersonation. 。 Create a linked server on SQL1 to SQL2. Configure the linked server to use mapped logins. 。 Instruct Eric to write the queries on SQL2 by using the OPENQUERY statement and specifying SQL1 as the server name. 。 Instruct Eric to specify SQL Server object names by using four-part notation.&e。
组织开展《教师专业标准》专题学习活动可以采取()等多种形式。
You want to migrate your existing nonASM files to ASM files for the database PROD. Which method or command would you use to accomplish this task?()