( ) is an important concept since it

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问题 (     ) is an important concept since it allows reuse of a class definition without requiring major code changes.A.InheritanceB.PolymorphismC.EncapsulationD.Data hiding

选项 A.Inheritance
B.Polymorphism
C.Encapsulation
D.Data hiding

答案 A

解析 参考译文
继承是一个重要的概念,因为它使得无需对代码做大的改变就能重用类定义。
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