采用继承机制创建子类时，子类中（ ）。
- A.只能有父类中的属性
- B.只能有父类中的行为
- C.只能新增行为
- D.可以有新的属性和行为
正确答案及解析
正确答案
解析
子类相对于父类，要更加特殊。所以会有新的成员来描述其特殊。
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