The words of Chai Jiurang instantly complicated the expressions of many in the audience!
Indeed...
Professor Chai hadn't changed at all, still just as the rumors portrayed...
Even if it was a student, what then?
He showed not a shred of mercy!
Though the "astute ones" below could tell that Chen Gong was either asking on behalf of someone else or deliberately chose a difficult question to attract attention.
Everyone thought Professor Chai wouldn't embarrass a student.
There was no need to expose him...
But now it seemed they had thought too much...
At the turning point, Professor Chai actually handed the chalk to Chen Gong.
The undergraduates below might not understand, but the specialized teachers and some PhDs could make out a bit of the logic.
