In breakfast, if starchy food, high-protein food and vegetables and fruits are available, it is a qualified breakfast. It will be a good breakfast if you add a handful of nuts. As for whether breakfast is Chinese or western, it is not so particular, as long as it is nutritious and comfortable to eat.
For example, a sliced whole wheat steamed bread (or bread is ok), a few slices of sauce beef, a dish of diced celery mixed with walnuts, a bowl of milk oatmeal and a half bowl of cherry tomatoes. Such a nutritious and comprehensive breakfast is very suitable for candidates. Because it usually takes children more than 3 hours from breakfast to the end of the exam, it is difficult to ensure that they can stably play a high degree of thinking efficiency within a few hours if the breakfast is so-so.