题目内容

传输一幅分辨率为640x480，6.5万色的照片（图像），假设采用数据传输速度为56Kbps，大约需要（）秒钟。

A. 34.82
B. 42.86
C. 85.71
D. 87.77

查看答案

搜索结果不匹配？点我反馈

更多问题

Extreme Programming (XP) is a discipline of software development with (14) of simplicity, communication, feedback and courage. Successful software development is a teameffort - not just the development team, but the larger team consisting of customer,management and developers. XP is a simple process that brings these people together andhelps them to succeed together. XP is aimed primarily at object-oriented projects using teamsof a dozen or fewer programmers in one location. The principles of XP apply to any (15) project that needs to deliver quality software rapidly and flexibly.An XP project needs a(an) (16) customer to provide guidance. Customers, programmers, managers, are all working (17) to build the system that’sneedeD． Customers - those who have software that needs to be developed - will learn simple,effective ways to (18) what they need, to be sure that they are getting what they need,and to steer the project to success. （17）应选入（）。

A. together
B. by themselves
C. separately
D. alone

关于系统总线，下面的论述中，不正确的是（）

A. 系统总线在计算机各个部件之间传送信息
B. 系统总线就是连接一个源部件和多个目标部件的传输线
C. 系统总线必须有选择功能，以判别哪个部件可以发送信息
D. 系统总线的标准分为正式标准和工业标准

在UML的动态建模机制中，（）描述了对象之间动态的交互关系，还描述了交互的对象之间的静态链接关系，即同时反映系统的动态和静态特征。

A. 状态图(State Diagram)
B. 序列图(Sequence Diagram)
C. 协作图(Collaboration Diagram)
D. 活动图(Activity Diagram)

The software architecture is a set of software components, subsystems, relationships, interactions, the properties of each of these elements, and the set of guiding principles that together constitute the fundamental properties and constraints of a software system or set of systems. (71) defines a general set of element types and their interactions. The examples include Pipes and Filters, Model-View-Controller, and Reflection. A (72) in software architecture is a representation used to understand or document one or more aspects of a problem or solution. Architecture is usually used in conjunction with many adjunct terms. The (73) defines the key strategies, organization, goals and related processes of the enterprise. At the enterprise level, the (74) may be more of a set of guidelines on how the various software architectures should be constructed consistently across the enterprise. The (75) , which describes the high-level set of elements involved in application from a particular domain along with their interactions, is often used to focus on subsystem definition rather than application process level definition. （71）处填（）。

Architectural pattern
B. Architectural description
C. Architectural view
D. Architectural viewpoint