Something growing in her brain caused damage to her ________ nerve, and doctors thought she could never see again. A. opposite B. optional C. optic D. optimistic
【单选题】下面程序运行的结果是public abstract class A{public A(){Console.WriteLine('A');}public virtual void Fun(){Console.WriteLine("A.Fun()");}public virtual void Fun2(){Console.WriteLine("A2.Fun2()");}}public class B ...