2. The initial subject codes indicated in the professional catalogue are 10 1 and199; 20 1、202、203、204; 30 1、302、303、306、307、3 1 1、3 12、3 13、3 14、3 15、397、398; 408, 4 14, 4 15, 497 and 498 are all unified propositions, that is, they belong to the national unified examination or the joint examination, while the subjects of other codes are independent propositions of Wuhan University.