（）就是根据成本信息和施工项目的具体情况，运用一定的专门方法，对未来的成本水平及其可能发展趋势做出科学的估计。 施工成本计划。 施工成本控制。 施工成本预测。 施工成本核算。
The bos.perf package is part of the base operating system. Performance Diagnostic tool， PDT， is a part of bos.perf. All of the following statements are true EXCEPT？（） PDT attempts to identify performance problems automatically by collecting and integrating a wide range of performance， configuration and availability data.。 PDT consists of three components， the collection component comprises a set of programs that periodically collect and record data， the retention component periodically reviews the collected data and discards data that is obsolete， and the reporting component periodically produces a diagnostic report from the current set of historical data.。 PDT contains motif-based， AIX licensed programs that can easily access tools for system and network performance tuning， monitoring， and analysis.。 PDT assesses the current state of a system and tracks changes in workload and performance. It attempts to identify incipient problems and suggest solutions before the problems become critical.。
下列用于板材连接和圆风管闭合连接的咬口加工的机器是（）。 压槽机。 滚槽机。 咬口机。 折边机。
Which of the following statements is true about IPAT via IP replacement？（） Configuration of Hardware Address Takeover is supported.。 Fewer physical network interface cards are required in the cluster.。 It is the default for keeping a service IP labels highly available.。 None-service ip labels must use different subnets than service IP labels.。
收入类账户的借方登记（）。 负债增加。 收入增加。 收入转销。 费用减少。
An administrator has mirrored rootvg onto hdisk1,after the physical volumes finished syncing the administrator wants to add the newdisk to the boot order.Currently the boot order looks like:hdisk0 blv=hd5.
Which of the following commands will add hdisk1 to the current boot order?（）
