Mathmatics this is really a pain in many people's hearts, of course it's mine. Although I have never failed in college mathematics, I have actually failed several times, with a score of 60. I think it's because the teacher is kind that I didn't fail myself. Otherwise, I will meet a strict teacher slightly, and I will definitely fail. I believe many people agree that in this list, mathematics is the easiest to fail. There is a saying that learning mathematics will not kill you, but you can't learn it if you die.
It's related to mathematics. This will also be in the list. Anyway, as long as it's related to mathematics, it's difficult if it's one word and two words. There are many things related to mathematics here. For example, most of a subject needs mathematics and operation, and that's it.
Physics and chemistry. In fact, in the eyes of many people, chemistry may be better than physics. I remember being tortured by physics in junior high school and senior high school. Of course, I didn't choose a major related to this field after graduating from college. There is a saying that if you can't be taunted, you can afford to hide.
Medicine. Medicine is also a subject with high failure rate. This course is not only difficult to learn, but also tiring.