阅读程序题(给出【代码】注释标注的代码的输出结果)interface Com {int add( int a, int b);}abstract class People {abstract int add( int a, int b);}class Student extends People implements Com{public int add(int a,int b) {return a + b;}}public class 习题5_阅读3 {public static void main(String args[ ]) {Student stu = new Student ();Com com = stu;int m = com.add(12,6);People p = stu;int n = p.add(12,8);System.out.printf("%d:%d",m,n); //【代码】}}

描述74HC138这个器件，其实体名下面哪个定义是正确的？? entity 74HC138 is|entity HC74-138 is|entity HC74_138 is|entity HC74_138_

语句组“ENTITY MUXB41 IS ...END ENTITY MUXB41”的作用是（     ）

语句组“ENTITY SHIFT_REG IS ...END ENTITY  SHIFT_REG”的作用是（     ）

什么是实体（entity）？

The business entity principle states that the affairs of the owners are part of the financial operations of a business entity and should not be separated. A: 正确 B: 错误

‎下面关于导入包正确的是（）。‏ A: package com.chzu.util; B: package com.xsgl.service; C: import com.xsgl.entity.Student; D: import java.util.*;

Com in COM Port means ______________.

Which of the following parameter is used to generate reputation? A: The reputation value of an entity based on its user behavior B: The total number of feedback records C: The total number of performance monitoring reports from the entity and performance records provided by the entity D: All of the above

下列模块属于MS-DOS核心部分的是（） A: IBMBI B: COM     C: IBMDI D: COM         E: FORMA F: COM  G: IBMDO H: COM      I: COMMAN J: COM      K: XCOP L: COM