1, two majors in mathematics. If you want to continue to study fluid (graduate students of ship and ocean engineering have several general directions, such as generality, fluid and structure), you must have a solid mathematical foundation. Fluid mechanics is a very difficult course, and you can't learn it without good mathematics. Basically, you have to study fluid. Although I will study mathematics in depth when I am in graduate school, it is better to lay a good foundation for studying now.

2. Two computer majors. Ship specialty is also closely related to programming, such as computational fluid dynamics and structural finite element analysis. The control of ships, platforms and underwater robots requires electronic technology and computer technology. The development of some application software in this industry also needs computer technology. Of course, the content of computer major does not completely correspond to the above, and I don't know which two majors your school has chosen, but it is very helpful for the study in the above direction.

3. Two majors in economic management. The second major of economic management is very popular. I don't know if I will be a leader in the future. If you are interested, you can have a look, which can broaden your knowledge and broaden your horizons.