It is not easy to communicate now because the network in many places is close to saturation, and there is not much you can do (that is, daily maintenance and startup) unless you can do research and development or improve management quickly. Or go directly to an experienced big company (Huawei Cisco).
I like law, but you are a science student. Don't recite the law. I have been in contact with several law students before. They recite things every day, such as the expansion of social practice. The whole class drew lots to draw people (because they didn't want to go to the exam). If they think they can overcome it, they can.
Chemical industry, sorry I haven't touched this, I don't know much about it.
Simply put, communication engineering is quite satisfactory. I get paid every month after I finish my work at university, and running a company is easy and stress-free.
Law, reciting all kinds of laws every day, takes time to accumulate, and there are not many graduates.
Chemical engineering, (personal feeling) There are still many pharmacists working in the same field after graduation. PetroChina and Sinopec may just be tired from work.
University majors can only decide where you will go after graduation, but it doesn't mean what you will do forever, so choose a major you like or what you are best at, but you must work hard when choosing. In addition, I personally think that education is very important. If you have the opportunity to upgrade your academic qualifications, you must upgrade to a junior college to take the postgraduate entrance examination. In college life, we should also expand our knowledge, participate in student associations and activities, and exercise our communication skills. Come on, you still have a bright future.
If you don't know anything, you can keep asking me, or chat with me on QQ.