Usually they study in China, and some schools study in X+N mode, that is, they study in China for X years and then study abroad for N years. If the Ministry of Higher Education recognizes this school's cooperative education qualification (you can check the list of state-recognized cooperative schools on the website of the Ministry of Higher Education), then the diploma is of course a cooperative education diploma. If the Ministry of Higher Education does not recognize the qualification of this school, it is basically a training certificate, or a pheasant diploma, or an in-school diploma. Look at it after you figure it out, or you will be angry if you spend money to bring back a piece of waste paper.