軟考備考每日試題(231013)
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71、When performing project activity duration estimates,()is not included in the estimation techniques.
A、Three-point Estimating
B、Analogous Estimating
C、Parametric Estimating
D、Checklist Estimating
72、Self-driving technologies are important for the research and development in the field of().
A、Cloud Computing
B、Digital Finance
C、Artificial Intelligence
D、Intelligent Manufacturing
73、To build a modern logistics system,we should work on the()of its infrastructure,including railways and ports,and promote the integration of cources in the sector.
A、digital transformation
B、new generation of communication technology
C、block-chain technology
D、VR and AR
74、Information security emphasizes the security attributes of information(data)itself.()is not included in the security attributes.
A、Confidentiality
B、Consistency
C、Interity
D、Availability
75、()is enforced in 2021.
A、The Civil Code of the People's Republic of China
B、The Tendering and Bidding Law of the People's Republic of China
C、Government Procurement Law of the People's Republic of China
D、The Personal Information Protection Law of the People's Republic of China
(231012)答案
66、【試題解析】
高級教程第四版P615
動態(tài)投資回收期的計算
Pt=(累計凈現(xiàn)金流量現(xiàn)值出現(xiàn)正值的年數(shù)-1)+上一年累計凈現(xiàn)金流量現(xiàn)值的絕對值/出現(xiàn)正值年份凈現(xiàn)金流量的現(xiàn)值=(5-1)+9.8/37.2=4+0.26=4.26。慧翔天地
【參考答案】A
67、68、【試題解析】
線性規(guī)劃問題。假設(shè)資源A使用量為X,資源B使用量為Y,則可列出不等式方程組:
10X+4Y≥20
5X+5Y≥15
X≥0,Y≥0
求min{6X+3Y}。
畫出可行域,則X=4/3,Y=5/3時,6X+3Y最小,所以選擇A和B。
實際上就是取等號,即10X+4Y=20,5X+5Y=15時,解出X和Y的值。
【參考答案】A、B
69、70、【試題解析】
高級教程第四版P629
逐個計算V1分別到V6、V7、V8、V9的最短路徑長度。
V1到V6為:2+1+1+6=10;V1-V7為2+1+1+9=13;V1-V8為2+1+1+8=12;V1-V9為2+1+1=4;
因此在給出的4個選項中最遠(yuǎn)是到V7,從V1到V7的最短路徑長度是13。
【參考答案】B、C