A developer is designing a multi-tier application and discovers a need to hide the details of establishing and maintaining remote communications from the client. In addition, the application needs to find, in a transparent manner, the heterogeneous business components used to service the client’s requests. Which design patterns, working together, address these issues?() Business Delegate and Transfer Object。 Business Delegate and Service Locator。 Front Controller and Business Delegate。 Intercepting Filter and Transfer Object。 Model-View-Controller and Intercepting Filter。
已知某工程设备购置费为2000万元,未达固定资产标准的工具、器具及生产家具购置费为200万元,建筑工程费为1000万元,安装工程费为400万元,工程建设其他费用为290万元,基本预备费费率为8%,则该项目的基本预备费为()万元。 A.288.0 。 B.254.4 。 C.279.2 。 D.311.2。
在党内组织秘密集团或者组织其他分裂党的活动的,给予开除党籍处分。
A client host uses IPv4 to communicate with one ser ver and IPv6 to communicate with another.Which of the following IPv6 coexistence features is likely at work on the host?() Native IPv6。 Point - to -point tunnels。 Multipoint tunnels。 NAT - PT。 Dual stack。
()是内部控制中存在的、可能导致不能及时防止或发现并纠正财务报表出现重大错报的一项控制缺陷或多项控制缺陷的组合。 重要缺陷。 设计缺陷。 重大缺陷。 运行缺陷。
微机出现“死机”故障,引发该故障的原因可能是()。