Wednesday, 18 March 2020, 1:17 PM --> Wednesday, 18 March 2020, 1:19 PM

13:17: 陈梓彤 20172521094 has just entered this chat

13:18 陈梓彤:

慕课的测试需要完成吗测试的知识点有的是我们在上课时没有讲过的

13:19: 陈梓彤 20172521094 has left this chat