A.select * from department where dep_numin(1001,1002,1003);
B.select * from department where dep_num=1001 and dep_num=1002 and dep_num=1003;
C.select * from department where dep_num=1001 or dep_num=1002 or dep_num=1003;
D.select * from department where dep_num between 1001 and 1003;
A.select * from student where score>60 and score<80;
B.select * from student where score between 80 and 60;
C.select * from student where score>= 60 or score<=80;
D.select * from student where score>= 60 and score<=80;