题目内容
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[单选题]
下列程序段中具有相同值的是()。class Base{int b;}; class Base1:virtual public base{int b1;}; class Base2:virtual public base{int b2;}; class derived:public base1,base 2{int b3;}; derived d
A.d.b与d.base1::b
B.d.base1::b与d.base1::b1
C.d.b与d.b3
D.d.base2::b与d.base2::b2
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