某设备由10个元件串联组成，每个元件的失效率为0.0001次/小时，则该系统的平均失效间隔时间为（）小时。

（）is responsible for the attraction,selection,training,assessment,and rewarding ofcomployers,while also overseeing organizational leadership and cuiture and ensuring compliance with cmployment and labor laws

Software configuration management(SCM),is the task of tracking and controiling changes in the software,configuration management practicesconfiguration identirication change control （）and configuration audit

Is requirements engineering,requirements elietation is the practiceof collecting therequirements of a system frce users,customers and other stakeholders. Is the following practices （）is rarely used in requirements elicltation

（）is a collection of data sets,which is so large and complet that is because difficult to process using on hand database management tools or traditional data peocessing applications

下图中，从A到E的最短长度是（）（图中每条边旁的数字为该条边的长度）

（）is the process of documenting,analyzing,tracing,prioriiting on requirements and then controlling change and communicating to stakeholders it is a continuous process throughout a project

编号1、2、3、4、5、6的6个城市的距离矩阵如表2所示，设推销员从1城出发，经过每个城市一次且仅一次，最后回到1城，选择适当的路线，推销员最短的行程是（）公里

某厂编号为Ⅰ、Ⅱ、Ⅲ的三种产品分别经过A.B.C三种设备加工，已知生产各种产品每件所需的设备台时，各种设备的加工能力（台时）及每件产品的预期利润见表3适当安排生产计划可获得最大总利润（）元

某部门有3个生产同类产品的工厂（产地），生产的产品由4个销售点（销地）出售，各工厂的生产量（单位：吨）、各销售点的销售量（单位：吨）以及各工厂到各销售点的单位运价（百元/吨）示于表4中。 适当安排调运方案，最小总运费为（）

有一辆货车每天沿着公路给4个零售店运送6箱货物，如果各零售店出售该货物所得到利润如表1所示，适当规划在各零售店卸下的货物的箱数，可获得最大利润（）万元