消弧线圈切换分接头的操作的规定是（）。 ["应按当值调度员下达的分接头位置切换消弧线圈分接头","切换分接头前，应确知系统中没有接地故障，再用隔离开关断开消弧线圈","装设好接地线后，才可切换分接头、并测量直流电阻","测量直流电阻合格后才能将消弧线圈投入运行"]
Which two demonstrate an “is a” relationship？ （） [" public interface Person{} public class Employee extends Person{}"," public interface Shape{} public class Employee extends Shape{}"," public interface Color{} public class Employee extends Color{}"," public class Species{} public class Animal （private Species species；）"," interface Component{} Class Container implements Component （ Private Component[ ] children； ）"]
程序性知识
Which statement is true？（） [" An anonymous inner class may be declared as final."," An anonymous inner class can be declared as private."," An anonymous inner class can implement multiple interfaces."," An anonymous inner class can access final variables in any enclosing scope."," Construction of an instance of a static inner class requires an instance of the enclosing outer class."]
地震波可分为（）和（）。
试计算2840克相当于多少盎司重量。
