Just in the campus recruitment, I got the offer from China Mobile Changji Branch and China Petrochemical Xinjiang Branch, but I'm struggling with which unit to go to.

Going to Xinjiang has a high salary and a professional counterpart, but the environment is relatively poor. As for the development prospect, it should be very good. China Mobile may not be your major, but the working environment may be much better than that in Xinjiang, but the salary may not satisfy you, and you may have to pull business, so the pressure may be a little greater. It's up to you anyway.