【简答题】某数据库中有表COURSE(CNO,CNAME,TNO)和表TEACHER(TNO,TNAME,DE- PART),完成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 (4) (SELECT X.TNO FROM COURSE X,COURSE Y WHERE (5) (6) (7) )
【单选题】Although Whitney Houston died of an accidental drowning on February, 11, adequate evidence showed that cocaine was a factor that to her death. [ ]