【简答题】阅读以下程序,写出输出结果。 class Animal { Animal() { System.out.print ("Animal "); } } public class Dog extends Animal { Dog() { System.out.print ("Dog "); } public static void main(String[]args) { Dog sno...
【简答题】How many faces have an octahedron? How many corners? What is the coordination number of a central ion which has an octahedral coordination sphere?