USE-2021. Literature 20 training options for examination for preparing for a single state

The attention of schoolchildren and applicants is offered a textbook for preparing for a single state exam that contains 20 training options for examination work.
Options for control measuring materials are created by analogy with real examination materials and include, first of all, the works necessary for preparing for the examination .
Each option includes tasks of different levels of complexity, which provides an excellent opportunity for intensive training and mastering the necessary knowledge, abilities and skills for successful surrender of the exam.
At the end of the book, answers to tasks with a brief answer and the criteria for verification and evaluating the completion of tasks with a detailed answer