One diploma is the same as two, and there is no difference in appearance. Even if there is a difference, it is only reflected on the cover (such as the graduation certificate of a university).

There is no difference between one diploma and two diplomas. Finally, the diploma will indicate the bachelor's degree awarded by your major, such as studying business as a bachelor's degree in economics and so on. (Bachelor degree refers to undergraduate course)

The difference between one and two books lies in the prestige of the school, the strength of teachers and so on. The traditional idea is that the last book is better! But it will not be reflected in the diploma!

One book: National key universities directly under the Ministry of Education, 985 Engineering University, 2 1 1 Engineering University, some provincial key universities (that is, two books), some provincial key universities and some majors.

Two books: provincial key universities, provincial ordinary universities, some national key universities (that is, one book) and some majors.