Every year, on June 7th and 8th is the biggest day for Chinese high school students, because they need to take part in the College Entrance Exam, which will decide their future. High school students study three years to prepare for this exam, they try their best get the highest mark, so that they can enter the ideal university. The parents also feel very nervous, they want to create the best environment for their kids to study, so they do a lot of things for their kids, helping them to win more time to go over the lesson. Some parents are even tempted by the commercial ads to buy all kinds of nutritions. The most exaggerating situation is that the students studying while they are injected with some nutrition. All the parents and teachers want the students get the best results in this big test.