Can go in and out. According to relevant data, Jilin Tang class has its own basic courses and physical education class, and the basic courses are more difficult than ordinary classes except politics. Tang classes are divided into five directions: mathematics, physics and livelihood. Among them, the specialized courses of mathematics and physics are taught together with ordinary courses, and the types are the same. Biochemical courses are taught by ourselves, more than ordinary courses. Computers are taught by excellent engineers, and professional courses are similar to ordinary courses. In and out of the Tang class, in addition to the first semester selection, the top five in mathematics, physics and biology have the opportunity to enter the Tang class again. There are more computers, reaching the top ten. Among them, physics grade point 3.7 will be eliminated, mathematics is not the top 5 major, and failing in other directions will be eliminated.