UML中有4种关系：依赖、关联、泛化和实现。（ ）是一种特殊／一般关系，使子元素共享其父元素的结构和行为。
- A.依赖
- B.关联
- C.泛化
- D.实现
正确答案及解析
正确答案
解析
本题考查面向对象UML建模语言知识点UML用关系把事物结合在一起，主要有下列四种关系：依赖（Dependency）依赖是两个事物之间的语义关系，其中一个事物发生变化会影响另一个事物的语义关联（Association）关联描述一组对象之间连接的结构关系泛化（Generalization）泛化是一般化和特殊化的关系，描述特殊元素的对象可替换一般元素的对象实现（Realization）实现是类之间的语义关系，其中的一个类指定了由另一个类保证执行的契约
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