dbacbaaddccdcabbcbacselect * from score where 成绩 in(85,86,88);select * from score where 成绩 between 60 and 80;select * from student where 班级= '95031' and 性别 = '女';select avg(分数) from 成绩 where 编号= ‘3-105‘;select sname,cno,degree from 学生表;select distinct depart from 教师表;select * from score order by cno,degree desc;selec...