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【判断题】
核算国民经济活动的核心指标是国民生产总值(简称GNP)。A.
正确
B.
错误
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反馈参考答案：
举一反三
【简答题】“季节系列”是王蒙发表于90年代的系列长篇,包括《_______》、《________》、《_________》、《_________》。
【单选题】public interface A { String DEFAULT_GREETING = “Hello World”； public void method1（）； } A programmer wants to create an interface called B that has A as its parent. Which interface declaration is c...
A.
public interface B extends A {}
B.
public interface B implements A {}
C.
public interface B instanceOf A {}
D.
public interface B inheritsFrom A {}
【单选题】In following description of the interface ,the incorrect one is :
A.
Interface is a reference type
B.
Interface supports multiple inheritance
C.
Methods in an interface have no method body
D.
An interface can inherit variables from other interfaces
【单选题】How set the IP address to an interface and after enable a port or interface:
A.
Router(config)# interface Router(config-if)# ip address Router(config-if)# no shut
B.
Router(config)# interface Router(config-if)# ip number Router(config-if)# open interface
C.
Router(config)# interface Router(config-if)# ip address Router(config-if)# shutdown
【多选题】The communication between the external device and the CPU is through the input / output interface. What are the main reasons for setting the interface?
A.
Interface works as data cache
B.
Interface for information format conversion
C.
The interface reports the operating status of the device and communicates the commands of the computer
D.
Interface accelerates information transmission
【单选题】下面关于interface，叙述错误的是：()
A.
一个interface可以继承多个interface
B.
interface中的方法定义中不可以再冠以abstract
C.
interface中可以定义有static final 常量
D.
interface中可以无任何方法定义
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