Restricted elective courses mean that students must choose one or more courses from a few designated courses or a group of elective courses.

Tina is taking _______ elective class(es)

High school English courses are divided into two categories: compulsory courses and elective courses.

College students have to take ____________ courses. A: Extracurricular B: Elective C: Compulsory D: Optional

The president of Harvard pioneered the elective system by （ ） students were able to choose their own coursed of study.。 A: what B: whom C: that D: which

查询“学生选课”数据库，输出需要补考的学生姓名。 对应的SQL语句如下： SELECT sname FROM studentinfo WHERE sno =______ (SELECT sno FROM elective WHERE score<60); 下划线应填入的是：

Who are our target students？（ ） A: Students in university looking for an elective in Business Entrepreneurship B: Students who are curious about business creation and development C: Internationals who are English speakers looking for an introduction to business entrepreneurship D: Current business owners looking for more information on running a business

All except which one of the following are good ways to acquire money for starting an investment program? A: pay bills first, and then save a reasonable amount of money for investment B: participate in an elective savings program offered by your employer C: make a special savings effort one month per year D: borrow money specifically for investment purposes E: take advantage of gifts, inheritances, and windfalls

以下类public class Course {private String name;private boolean elective;private Teacher teacher;// getter/setter}public class Teacher {private String name;// getter/setter}说明：基于Optional操作需求描述中的指定X，均指方法的参数有返回值的方法，尝试直接编写return语句，基于Optional操作直接返回所需结果尝试使用简写注意过滤代码格式方法1，基于指定课程，打印课程名称