Job Recruitment Website - Job information - All the cars in the same city are from Ningbo. What happened?

All the cars in the same city are from Ningbo. What happened?

First of all, it may be because the area I set here is Ningbo, because when I look at the car on it, I will recommend it according to the area I set. Secondly, it may be because there are no cars in other places, and I will vigorously promote them only if there are many cars in Ningbo, so this will happen.