2. 计算机
  3. Unified Modeling Language(CML)is a widely used method ofvisualizing and documenting all information system．The UML Can be used t

Unified Modeling Language(CML)is a widely used method ofvisualizing and documenting all information system．The UML Can be used t

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问题 Unified Modeling Language(CML)is a widely used method ofvisualizing and documenting all information system．The UML Can be used to develop  ____①____，in which an object represents a  person，place，evenL or transaction that is significant to the information system．Systems analysts  defme an object’s attributes during the ____②____．An object also has ____③____，which are tasks or  functions that the object performs when it receives a message，or command，to do so．A(n) ____④____ is  a group of similar objects．If objects are similar to nouns，attributes are similar to adjectives that  describe the characteristics ofan object．Objects Can have a specific attribute called a(n) ____⑤____，which ofan object is an adjective that describes the object’s current status．All objects within a class  share common attributes and methods，SO a class is like a blueprint，or template for all the objects  with the class．
⑤
选项 A、state
B、constant
C、instance
D、member
答案A
解析 参考译文统一建模语言(UML)是一种广泛用于可视化和文档化信息系统的方法。UML可用于开发对象模型，其中的对象表示人、地点、事件或信息系统的关键业务。系统分析师在系统设计过程中定义对象的属性。对象还具有方法，这些方法是对象在收到消息或命令时执行的任务或功能。一个类是一组相似的对象。如果把对象类比于名词，那属性就可类比于描述一个对象特征的形容词。对象可以具有称为状态的特定属性，通常一个对象的状态用于描述该对象的当前状态。一个类中的所有对象共享共同的属性和方法，所以一个类就像一个蓝图，或该类中所有对象的模板。
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