Is the graduation defense of Yunnan Correspondence College a lottery?

It is based on the relevant information of academic reference network; The graduation defense of Yunnan Correspondence University was decided by lottery. Graduates of Yunnan Correspondence University should participate in thesis defense in principle. Under special circumstances, a partial defense system can also be adopted. The specific proportion of defense is determined by the graduation thesis working group according to the actual situation. Part of the defense system is to select some students to participate in the defense by drawing lots to verify the teaching effect.