【简答题】Surviving Hurricane Sandy( 飓风桑迪) Natalie Doan,14, has always felt lucky to live in Rockaway, New York. Living just a few blocks from the beach, Natalie can see the ocean and hear the waves from her ho...
【简答题】有如下代码,请问哪些是正确的 ?() class ClassA{} class ClassB extends ClassA{} class ClassC extends ClassA{} 以及 ClassA p0 = new ClassA(); ClassB p 1 = new ClassB(); ClassC p2 = new ClassC(); ClassA p3 = new ClassB()...