Undergraduate approval in advance, the first batch of undergraduate, the second batch of undergraduate (also known as 2A, commonly known as two tables A, that is, the past two tables), the second batch of Sino-foreign cooperative education (also known as 2B, commonly known as two tables B), the third batch of undergraduate, higher vocational colleges (specialties) and ordinary higher vocational colleges (specialties) are approved in advance.
According to the above order, the scores are arranged from high to low, and the admission time is also in turn. Undergraduate students are admitted first in advance, and ordinary higher vocational (specialist) batches are finally admitted.
The 2B you mentioned is a Chinese-foreign cooperatively-run school, which also belongs to the second table. It doesn't exist. It has just been established in recent years, but the tuition fees are relatively high, most of which are the national unified price 16500 yuan/year/student. Such institutions can choose the training methods provided by the institutions, go abroad and get two degrees, or simply stay at home, which means the price is relatively high. Admission is also included in the second table of undergraduate course.