A、B、C、D、E、F、G代表七个村落,村落之间的道路连通情况如下图所示(边上的数据为距离,单位为公里)。这七个村落拟合建一所小学,已知A村有小学生50人、B村有小学生40人、C村有小学生60人、D村有小学生20人、E村有小学生70人、F村有小学生80、G村有小学生100人。则拟合建小学应建在( )村落,才能使学生上学所走的总路程最短。
A.C
B.A
C.F
D.E
假设每台机床只能完成一道工序,现有四道工序需要分配到四台机床上,分配成本(以元计)如下所表示,由于工艺要求,工序一不能分配到机床丙上,工序三又不能分配到机床丁上。成本最低的分配方案中,其成本是( )
A.12 B. 13 C. 14 D. 15
某航空公司为满足客运量日益增长的需求,拟购置一批新的远程、中程及短程的喷气式客机。每架远程客机价格670万美元,中程客机500万美元,短程客机350万美元。该公司现有资金12000万美元用于购买飞机。据估计每架远程客机的年净利润为82万美元,中程客机的年净利润为60万美元,短程客机的年净利润为40万美元。假设该公司现有的熟练驾驶员可支持30架新购飞机的飞行任务,维修能力足以满足新增40架新的短程客机的维修需求,而每架中程客机维修量相当于4/3架短程客机,每架远程客机维修量相当于5/3架短程客机,为获取最大利润,该公司应购买各类客机分别为()架。
A.远程17,中程1,短程0
B.远程15,中程1,短程2
C.远程12,中程3,短程3
D.远程10,中程3,短程5
某公司打算向它的三个营业区增设6个销售店,每个营业区至少增设1个,各营业区年增加的利润与增设的销售店个数有关,具体关系如下表所示。可以调整各营业区增设的销售店的个数,使公司总利润增加额最大达( )万元。
A.520 B.490 C.470 D .510
Your company CEO just sent you an E-mail asking you to make a … on your project , which has been in progress for 10 months , to all Identified internal and external stakeholders. He scheduled the presentation for next Monday.You expect more than 50 people to attend. The first step in preparing the presentation is to ( ).
A. define the audience
B. determine the objective
C. decide on the general form of the presentation
D. plan a presentation strategy
A data warehouse is a subject-oriented data set used for reporting and analusis. Data warehouses can be subdivided into ( ). Which store subsets of data from a warehouse.
A . OLTPs B. transactions C. data sarts D. OLAPs
The communication management plan determines the information and communications needs of the stakeholders. In the following statements related to communication management plan. ( ) is false.
A. The communication management plan is contained in or is a subsidiary plan of, the project management plan.
B. The communication management plan can be formal or informal, highly detailed or broadly framed, and based on the needs of the project.
C. The communication manamgement plan organize and summarize the information gathered,and present the results of any analysis as comparedthe performance measurement baseline.
D. The communication management plan can include guidelines project status meetings,project team meetings,e-meetines,and e-mail