数据流图
2016-06-29 16:01:42 0 举报f
作者其他创作
大纲/内容
studentAnwser
tasks
teacherId
mark
teacher
prepared
groups
record
exercise
student
RoleId
post tasks or tests
tasks and tests prepared
group role
chosen
participate
record group
StudentId
open group
group management system
tests
courseId
courses
involk
open courses
收藏
0 条评论
下一页
