Then English self-introduction is definitely necessary.
Summer camp doesn't matter, mainly because the teacher wants to see how you are and how your personality is.
If there are many professional problems involved in real insurance research and postgraduate interview, there are professional basic courses and professional courses.
Professional basic courses: engineering thermodynamics, fluid mechanics, heat transfer (three professional basic courses mixed random answer)
Specialized courses: boiler principle, steam turbine principle, thermal control principle and system, thermal instrumentation (choose a specialized course and draw lots to answer)
PS: If you can't draw the above two kinds of lucky draw, you will have a chance to draw it again. For the fourth painting, the teacher will deduct points.