Difficult. There will be an exam at the end of the term, and the exam will have a certain evaluation, but it is quite difficult to sprint the test paper of 100, because the full mark test paper requires students to master all the knowledge. The perfect score paper requires students to be particularly careful, not to do the questions too slowly, and to develop the habit of checking. The paper should be clear, the handwriting should be neat, and the answers should be organized.