Home visits only ask about personal, family and social relations. Basically, we just talk casually. The main concern is whether there are political problems in your family. Even asking about academic qualifications generally means asking which school you graduated from, as long as the diploma is true. These questions won't test you. In fact, the grassroots in the army don't really want you to have a high degree and study well, because the exam will not do them any good after you arrive in the army.

I didn't expect you to meet an interesting soldier, but if you want me to tell you what questions they might test you, I'm really embarrassed: who knows what questions the next wave of soldiers will test you on a whim? In my opinion, it is much more useful for you to open your math \ physics book and skim it than to let everyone answer it. Because there is really no range you can predict, it is a good idea for you to take this opportunity to review what you have learned before.

I can help you think of Pythagorean theorem in mathematics, trigonometric function and inverse trigonometric function, reduction to absurdity, buoyancy formula in physics, pressure and pressure, kinetic energy theorem, energy first constant, periodic rate of elements in chemistry, various tenses and passive voices in English and so on.