I personally think biology is more difficult. I have studied both courses. I feel that biochemistry is much more difficult than mathematical biology, so I need to understand and connect with it. If you are not good at reciting mathematics and biology, don't choose the principle of chemical engineering, which is less difficult than biochemistry, and the knowledge framework is compact, and the calculation problems are very routine and not difficult, especially those with poor foundation.

Relatively speaking, counting one is more difficult. Counting one is a lot of things and math. Suitable for 1 enrollment major. Mechanical engineering, optical engineering, instrument science and technology, metallurgical engineering, power engineering and engineering thermophysics, electrical engineering, electronic science and technology, information and communication engineering control.