【单选题】请阅读以下程序,并写成结果。class Father{ public void hello() {System.out.println("Father says hello.");}}public class Child extends Father{ public void hello(){System.out.println("Child says hello");} public stati...
【简答题】Direction: Complete the following sentence with a proper word from your textbook on P. 74. Change the form if necessary. We all want to know what (adv.) happened.