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軟題庫 培訓(xùn)課程
試卷年份2009年下半年
試題題型【單選題】
試題內(nèi)容

(  )is a property of object-oriented software by which an abstract operation may be performed in different ways in different classes.
A.Method
B.Polymorphism
C.Inheritance
D.Encapsulation

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