题目

在远程写卡工作中,写卡动作是由下列哪个系统负责完成().

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1. public class test (  2. public static void main(string args[]) {  3. int 1= 0;  4. while (i)  {  5. if (i==4) {  6. break;  7. }  8. ++i;  9. }  10.    11. }  12. )   What is the value of i at line 10?()

A、 0

B、 3

C、 4

D、 5

E、 The code will not compile.

A user opens a webpage that requires the transmission of packets from the Web server to the client's browser. The packets transmitted from the Web server to the client exceed the smallest MTU value on the communications path. Which two protocol functions allow this type of communication?()

A

packet segmentation

B

serialized checking

C

packet sequencing

D

parallel checking

The IP address 192.168.100.1 belongs to which class of IP address space?()

A、Class A

B、Class B

C、Class C

D、Class D

若操作系统文件管理程序正在将修改后的()文件写回磁盘时系统发生崩溃,对系统的影响相对较大。

A、用户数据

B、用户程序

C、系统目录

D、空闲块管理

Which are syntactically valid statement at// point x?()     class Person {     private int a;  public int change(int m){  return m;  }     }  public class Teacher extends Person {     public int b;  public static void main(String arg[]){     Person p = new Person();     Teacher t = new Teacher();    int i;  // point x     }    } 

A

 i = m;

B

 i = b;

C

 i = p.a;

D

 i = p.change(30);

E

 i = t.b.

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