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JAVA中用类名(teacher)作为另一个类(Course)某一个属性的返回值有什么用?请帮忙举
追问:例如 Teacher类中有属性name、id,在另一个Course类中有属性 Teacher Tea;追答:比如,这里有两个类:老师类:1这里就略写了。课程类:...
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Mysql数据库基本查询操作练习题
有student、teacher、sc、course四个表,题目如下: 1.查询"01"课程比"02"课程成绩高的学生的信息及课程分数 方法一:(select t1.SId,class1,class2 from(select SId,score as class1 from sc ...
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sql练习
insert into Course values('03','英语','03');insert into Teacher values('01','张三');insert into Teacher values('02','李四');insert into Teacher values('03','王五');insert into ...
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Moodle 1.9:English Teacher's Cookbook
QQ阅读提供Moodle 1.9:Teacher's Cookbook,Music in the clock diagram—embedding MP3 files to our Moodle course在线阅读服务,想看Moodle 1.9:Teacher's Cookbook最新章节,...
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数据库基础练习题
SELECT CNO FROM teacher,course WHERE teacher.TNO=course.TNO AND TNAME=“张旭”) – 24、查询选修某课程的同学人数多于5人的教师姓名。SELECT TNAME FROM teacher WHERE TNO= SELECT TNO ...
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短文改错 You are a middle school student,are you?1.So of course,you have a teacher teaches you English.2.And under the help of ...
So of course,you have a teacher teaches you English. 2._ And under the help of your teacher,you do a lot 3._ of listening,speaking,reading and writing in the 4._ class.That’s ...
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Chinese Course Teacher's Book
Chinese Course is a series of textbooks for the major course of basic Chinese.It is divided into three books,each with two volumes.Books 1 and 2 are used in the first semester and ...
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设有一数据库,包括四个表:学生表(Student)课程表(Course)成绩表(Score)以及教师信息表(Teacher)四个表的结构分别如表1
Create table create table COURSE(cno VARCHAR2(5)not cname VARCHAR2(10)not tno VARCHAR2(3)not null)tablespace USERS pctfree 10 initrans 1 maxtrans 255;Add comments to the ...
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The person who set the course of my life was a school teacher named Marjorie Hur
The person who set the course of my life was a school teacher named Marjorie Hurd.When 1 stepped off a ship in New York Harbor in 1949,I was a nine-year-old war refugee,who had ...
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依据course表和teacher表的数据
select count(grade.coursecode),course.coursecode,teacher.teachername from teacher,course,grade group by teacher.teachername 转开情该载管或者引用本文内容请注明来源于厂芝士回答 order...
course/teacher/1
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