若类A和类B的定义如下: class A { int i,j; public: void get(); //... }; class B: A { int k; public: void make(int ); //... }; void B::make(int j) { k = i*j; } 则上述定义中,非法的表是( )。
【简答题】George Gershwin, born in 1998, was one of America’s greatest composers. He published his first song when the was eigh years old. During the next twenty years he wrote more than five hundred songs....