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Answers and rating deltas for

How could an instance of the base class hold an instance of the derived class?

Author Votes Δ
Charles Bretana 5 +1.82
Raymond Chen 4 +0.22
Mike Mooney 2 -1.21
Holmes 0 0.00
darnir 0 -3.51
Last visited: Sep 14, 2014, 5:07:29 AM