The teacher asked the students to stop _____and _____to her.
The teacher asked the students to stop _____and _____to her.B
teacher
对于学生--选课--课程的三个关系：S(S#,SNAME,SEX,AGE)SC(S#,C#,GRADE)C(C#,CNAME,TEACHER)为了提高查询速度，对SC表创建唯一索引，应建___个组上。
对于学生--选课--课程的三个关系：S(S#,SNAME,SEX,AGE)SC(S#,C#,GRADE)C(C#,CNAME,TEACHER)为了提高查询速度，对SC表创建唯一索引，应建___个组上。A
I am so _____ that I cannot recall my old teacher’s name.
I am so _____ that I cannot recall my old teacher’s name. B
He is a college teacher of many years’ _______.
He is a college teacher of many years’ _______. D