How many people interviewed in Nanjing province?

Three people. Three people were interviewed in the Nanjing provincial exam. Let three candidates enter at the same time and answer in turn according to the serial number of the lottery. For candidates, three people interview together, which is competitive with each other. For the examiner, we can observe the thinking expression, improvisation, interpersonal relationship handling, on-site control and other abilities of three people and choose the best one.