2 1, undergraduate thesis should be sampled, and ordinary undergraduate students can't graduate because of the thesis. Nowadays, the requirements for graduation in universities are becoming more and more strict. The graduation thesis has to pass the duplicate check, but it can't graduate smoothly. Paper sampling is to sample the papers passed by the school. If there is a problem with the sampling, you can't graduate, but the sampling is only a sampling, and the possibility of drawing it yourself is very low.