1, business class I: in postgraduate entrance examination, it usually refers to basic or professional mathematics courses closely related to the major to be applied for. Depending on the major, Business One may be Math One, Math Two or Math Three, all of which are subjects of national unified proposition, and examine the basic knowledge of mathematics and the ability of logical reasoning.
2. Business 2: refers to the professional course examination of independent propositions in colleges and universities, the content of which is closely related to specific majors, such as financial, economic, legal, computer, education and other professional course knowledge.