【简答题】I’m Paul. I’m thir. My parents, my brother and I are in Beijing now. My brother and I are in Beijing No.1 Middle School. I like soccer very much. I am on the school soccer team (队). My brother Dav...
【简答题】下列程序片段中,能通过编译的是:A. public abstract class Animal{ public void speak();} B. public abstract class Animal{ public void speak(){}} C. public class Animal{ public abstract void speak();} D. public abstr...