What is the form of the on-site exam for tour guides in Nanjing?

The oral exam is divided into groups before going in, and then lots are drawn to decide the scenic spots. The first group has the least time to prepare. After the first group entered the room, the people in the second group waited outside the room with their numbers. You can't go in until the person in front comes out.

One seventh of the scenic spots, two examiners. First introduce the basic situation of Nanjing, and then directly introduce the scenic spots. After the lecture, the examiner will ask you some questions about the scenic spots. Then let you draw an envelope and answer the questions in the envelope.

The explanation of scenic spots is not divided into chapters, but the whole article. After the lecture, the examiner will ask you some questions about what you missed.