One day, about ten years ago, while working at the cash register in the gift shop at my University Museum of Natural History, I saw 小题1:_______   elderly couple come in with a little girl in a wheelchair. As I looked 小题2:________    ( close ) at this girl, I found that she was fixed on her chair. I then realized she had no arms or legs, just a head, a neck and upper body, 小题3:_______   ( dress ) in a little white skirt. As the couple wheeled her up to me, I turned my head toward the girl. When I took the money from her grandparents, I looked back 小题4:________ the girl, who was giving me the most optimistic, largest smile I had ever seen. All of a sudden, her handicap was gone and all I saw was this beautiful girl, 小题5:________   smile just melted me  小题6:_______   almost instantly gave me a completely new sense of   小题7:_______   life is all about. She took me from a poor, unhappy college student and   小题8:___________   ( bring ) me into her world; a world of smiles, love and   小题9:__________  ( warm ). I’m a successful business man now and whenever I think about the troubles of the world, I think about that little girl and the remarkable lesson about life that she taught  小题10:_________   .

设有基类定义： class Cbase { private: int a;protected: int b;public: int c; }; 派生类采用何种继承方式可以使成员变量b成为自己的私有成员

A．私有继承

B．保护继承

C．公有继承

D．私有、保护、公有均可