A.
select * from student where not depart=’ 信息技术系’ and depart=’ 机电工程系’ and depart=’ 管理系’
B.
select * from student where depart not in(’信息技术系’,’机电工程系’,’管理系’)
C.
select * from student where not depart=”信息技术系”and depart=”机电工程系”and depart=”管理系”
D.
select * from student where not depart in(”信息技术系”,”机电工程系”,”管理系”)