[单选题]

有如下类定义和变量定义: class Parents{ public: int publicData: private: int privateData; }; class ChildA:public Parents{/类体略*/}; class ChildB:private Parents{/类体略*/}; ChildA a; ChildB b; 下列语句中正确的是

A.cout<<a.publicData<<endl;

B.cout<<a.privateData<<endl;

C.cout<<b.publieData<<endl;

D.eout<<b.privateData<<endl;

参考答案与解析:

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有如下类定义和变量定义:class Parents{public:int pub