在WHERE子句中进行多表连接 根据TEACHER表、COURSE表和STUDENT表，查询所有学生的姓名、所在系、所修课程、考试时间、课程成绩及授课教师姓名。-Multi-table query all the student' s name connected according to the TEACHER Table, COURSE table and STUDENT table, where the Department of the courses, exam time, co

Calculate the phase  at time mTS Ts the sampling frequency. Read the value of cos( ) and sin( ) a table. -Calculate the phase  at time mTS Ts the sampling frequency. Read the value of cos( ) and sin(