题目内容

Abstract nouns rarely end up corresponding to classes. Instead they are frequently __________.

A. actions or behaviours
B. outside the scope of the problem boundary
C. methods of classes
D. attributes of classes

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In UML an open triangle denotes ___________.

A. message passing
B. inheritance
C. aggregation
D. association

CRC stands for Class Responsibility ___________.

A. Classification
B. Categorization
Communication
D. Collaboration

Using CRC cards, the Responsibilities correspond to the ____________.

A. attributes
B. functions
C. interactions with other classes
D. the classes themselves

If an item possesses a state, then it should probably be modelled as a(n) __________.

A. state variable
B. instance variable
C. class
D. method