马可威茨认为经过投资组合后投资方案会在（）中得到平衡。 风险。 收益。 风险—收益。 成本—效益。
网站中的多媒体技术主要包括（） 图像。 声音。 动画。 影像。
You work in a company which uses SQL Server 2008. You are the administrator of the company database. Now you are in charge of a SQL Server 2008 instance. For some reason, now the company wants to view the number of users who access the SQL Server instance. The company CIO assigns this task to you. You have to use Windows System Monitor to find out the concrete number. Which performance object should you capture?（） SQLServer:Buffer Manager 。 SQLServer:Access Methods 。 SQLServer:General Statistics 。 SQLServer:Exec Statistic。
your company has a single active directory forest that has a domain in North America named na.contoso.com and a domain in south America named sa.contoso.com. The client computers run windows vista. You need to configure the client computes in north America office to improve the name resolution response time for resources in the south ameirca offica. What should you do?（） Configure a new GPO that disables the Local-Link multicast name resolution feature. Apply the policy to all the client computes in the north America office.。 Configure a new GPO that enables the local-Link Multicast name resolution feature. Apply the policy to all the client computers in the north America office.。 Configure a new GPO that configures the DNS suffix search list option to sa. Contoso.com, na.contoso.com apply the policy to all the client computers in the north America office.。 Configure the priority value for the SRV records on each of the north America domain controllers to 5.。
《医疗器械生产许可证》有效期（）年。
系统设计时（）
