(1) Compared with other departments, the failure rate is higher, because the exam will be more difficult, and there is no project like "thesis" that won't deduct too many points, but it is definitely not "many people fail" (those who can go to Peking University at least study well), but only a few people. In fact, it is often, for example, the average score of mid-term and final exams is only 60 points (that is, half of them fail; Many questions are difficult, but the total score will be raised at the end of the term.

(2) You can retake the exam, but you can only retake it (that is, take this course for another year next year). The first retake has a normal score, and the second retake has the highest score, and you can retake it twice at most.

(3) It won't be "easy" because dropping out requires "the average GPA of the courses taken for two consecutive semesters is lower than 1.5, and the courses that failed for two semesters have accumulated more than 12 credits". But in fact, some people will drop out of school every session, but generally they don't study because they can't keep up with the learning progress, but because they are addicted to online games and other reasons.