There are interview questions in the interview of civil servants, which are of course determined according to your answers, your attitude and the comprehensive scores of etiquette and speech. Of course, it is fair to choose any topic, because topics such as self-introduction and how to carry out work are parallel, which means that everyone will choose two or more topics with similar difficulty. It's just what questions you are good at answering, and there is a lucky element in it. Answering what you are good at, of course, has a greater chance of passing the exam, that's all.
There is no absolute justice in this world. We can only do our best and strive for the greatest possibility.