Estimating schedule activity costs involves developing an (1

【名词&注释】

多态性(polymorphism)、关键词、排除法(exclusive method)、相同之处(same places)、工作范围(working range)、工作说明书(job instruction sheet)、显而易见

[单选题]Estimating schedule activity costs involves developing an (1) of the cost of theresources needed to complete each schedule activity. Cost estimating includes identifying and considering various costing alternatives. for example, in most application areas, additionalwork during a design phase is widely held to have the potential for reducing the cost of the execution phase and product operations. the cost estimating process considers whether the expected savings can offset the cost of the additional design work. cost estimates are generally expressed in units of (2) to facilitate comparisons both within and across projects.the (3) describes important information about project requirement that is considered during cost estimating.

A. C

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[单选题]Organizations perform work to achieve a set of objectives. Generally, work can be categorized as either projects or operations, although the two sometimes are（）

A. confused
B. same
C. overlap
D. dissever

[单选题]（）is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes.

A. Method
B. Polymorphism
C. Inheritance
D. Encapsulation

[单选题]Project selection methods involve measuring value or attractiveness to the project owner or sponsor and may include other organizational decision criteria （）is not a project selection method.

A. Benefitcontribution
B. Expertjudgment
C. Scoringmodels
D. Flowcharting

[单选题]Many of the activities performed during the preliminary investigation are still being conducted in(1),but in much greater depth than before. During this phase, the analyst must become fully aware of the (2) and must develop enough knowledge about the (3)and the existing systems to enable an effective solution to be proposed and implemented. Besides the(4)for process and data of current system, the deliverable from this phase also includes the(5)for the proposed system.

A. A

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