Graduation thesis is not difficult, but a little annoying. Always revise, write more than 30 pages, not copy. The teacher gives you some information, finds some information by myself, and then extracts useful ingredients from those things to write my own. The defense is in June, and the specific defense time of each school is different. The defense is generally relatively simple, and the whole process takes about 20 minutes. Defense is to let you introduce what you have learned, during which the teacher will ask some questions, which will usually pass.