第15题: [单项选择]下面关于虚函数的描述中正确的是 A. 虚函数是一个静态成员函数 B. 虚函数是一个非成员函数 C. 虚函数既可以在函数说明时定义,也可以在函数实现时定义 D. 派生类的虚函数与基类中对应的虚函数具有相同的参数个数和类型 参考答案:D 答案解析:[解析] 本题考核虚函数的概念。虚函数是非静态的成员函数,它不能是友元函数,但可以在另一个类中被声明为友元函数。所以A) 选项不正确;虚函数必须是类的成员函数,所以B) 选项是错误的:虚函数声明只能出
第29题: [单项选择]{{B}}Questions 11 to 18 are based on the conversation you have just heard.{{/B}} A. He has a lot of things to do. B. He doesn’t want Io see the film. C. He would give the world to see the film. D. He would rather do anything than seeing the film. 参考答案:C 答案解析:[听力原文]
W: I’m told that there will be a fantastic film in our local cinema,but we will have our fin