Beijing No.2 Middle School will queue up from top to bottom to enter the top 40. Official website of Beijing No.2 Middle School shows that a flight will be chosen in the third grade, which is the so-called direct class. From 20 10, Beijing No.2 Middle School will add 2+4 classes, with 20 16 as the seventh class. Those who ranked within 150 for the first seven times in junior high school are eligible to take the selection exam, and the top 40 or so children line up from top to bottom to enter the flight.