A doctor of artificial intelligence who traveled to a parallel world, and Chen Bo, a sophomore in keyboard application who was about to drop out of 23 subjects, complained incessantly: "Basic Routines" is too difficult. I would rather take the exam ten times for this exam syllabus. Sixiu. Wang Xu said: I have not collected the make-up exam fees, if this continues, I will drop out of school. Chen Bo was silent, picked up the women's clothing and embarked on the journey of substitute class.