Many parents think protein is very important. In fact, carbohydrates are the most indispensable in exams. "Carbohydrates are nutrients that maintain the normal function of brain cells. According to the height and weight of the child now, generally speaking, at least two staple foods should be eaten in one meal, and boys even have to eat three or four staple foods in one meal. " Liu Fang said that she prefers rice to pasta. "Rice has better hunger tolerance, and rice is hungrier than pasta." Of course, if children usually like pasta, don't change it to rice. "One of the most important principles during the college entrance examination is not to change your usual eating habits."