超星 - 作业6.5 - 查题吧

判断题

一台热机从400K的高温热源吸收1000J的热量，再向300K的低温热源放出200J的热量，完成一次循环。

A. 对
B. 错

判断题

冰可以化成水，水也可以结成冰，所以冰的融化是可逆过程。

A. 对
B. 错

判断题

不同温度的物体接触后热量从高温物体传给低温物体，是一个可逆过程

A. 对
B. 错

判断题

因物体间摩擦而使物体温度升高，这是一种不可逆过程。

A. 对
B. 错

单选题

52.Which of the following is an advantage of prototyping?

A.Encourages active user participation
B.Helps resolve discrepancies among end users
C.Gives users a feel for the final system
D.All of the above

单选题

56._____ is a formal document that describes in detail your logical requirements for a proposed system and invites vendors to submit bids for its development.

A.Requirements document
B.Design specification
C.Request for proposal (RFP)
D.Project scope document

单选题

57.If you were constructing a legal document for your software vendor that stipulated needed requirements, schedules, costs, acceptance criteria, and assessment metrics, what would you be creating?

A.Service level agreement
B.Critical milestones
C.Critical success factors
D.Request for proposal

单选题

58.If your U.S.-based company were to hire a vendor located in New York City, you would be using _____ outsourcing.

A.nearshore
B.domestic
C.onshore
D.interior

单选题

61.Which of the following is an advantage of outsourcing?

A.Increases technical know-how for future innovation
B.Reduces costs
C.Increases degree of control
D.Reduces vulnerability of your strategic information

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