Why are the public examinations in Guiyang, Zunyi, Tongren and Southwest Guizhou separate?

It's not a national exam. The provincial civil service examination in Guizhou is not a national examination, so the civil service examination in every place is separate. The examination places are generally in various schools. You can see your admission ticket for the specific location. The admission ticket will be printed before the written test, with the specific test place and time on it. Just take the exam on time.