层次分析是分析多因素对竞争力影响的常用工具时,以下对层次分析的描述不正确的是()。 层次分析特点是可以细致周全的比对各因素的影响。 层次分析是通过因素对比和权重,评价不同对象的竞争力差异。 层次分析能为决策都提出最优的新方案。 层次分析相对繁琐,定性数据较多。
Which of the following statements is TRUE concerning the po column of the vmstat command?() The sys is high when po is high.。 The po represents the number of page steals.。 The low values usually indicate insufficient paging space.。 The low values usually indicate sufficient memory for the load.。
请简述变桨系统的功能.
You performed the RMAN database backup having a backupset key number 231 with the KEEP FOREVER option. After some days, you want to change the status of the database backup and you issued the following command: RMAN>CHANGE BACKUPSET 231 NOKEEP; What is the implication of this command?() The backup is deleted.。 The backup is marked unavailable.。 The backup overrides the backup retention policy.。 the backup becomes eligible for deletion according to the existing retention policy。
()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。 A.施工成本计划 。 B.施工成本控制 。 C.施工成本预测 。 D.施工成本核算。
在普通型人寿保险中,储蓄性极强的险种是()