radiology department

A．The Export Department.B．The Import Department.C．The Sales Department.D．The Personnel

【C2】A．officeB．programC．organizationD．department

When does the next train depart?

When does the next train depart?

When does the next train depart?

学生表(id name sex age depart_id depart_name) 存在的函数依赖是id→{name sex age depart_id};dept_id→dept_name 其满足()