20 17 Yunnan college entrance examination uses the national III volume, that is, the new curriculum standard three volumes, the national C volume, and the C volume is generally simpler than the A volume and the B volume. However, there will be no differences in teaching materials because of different examination questions, and everything is in accordance with the proposition of the college entrance examination outline. After the college entrance examination, the papers can't be taken away. They will be sealed and sent to the designated marking location. The graded test paper belongs to a kind of college entrance examination file. If it is archived for a certain number of years, candidates will no longer be able to access their own college entrance examination papers.