The accuracy of the examination questions is 85%. The difficulty, scope, depth, duration and skills of the examination paper should meet the national or regional examination standards, and the relevant standards and guidelines of the corresponding disciplines should also be considered.

The examination paper should take into account the age, knowledge level, hobbies, learning background, cultural quality, gender, nationality and other factors, so it should be adjusted and set according to the actual situation. The distribution and collocation of different questions and scores should be considered in the test paper to ensure the difficulty and integrity of the test paper.

Examination papers should be checked and revised many times to eliminate any possible mistakes and defects. The accuracy of examination papers is also influenced by students' own strength and review. If students have a weak foundation or do not review carefully, they may not get good grades even if they use compositions.

Therefore, students should pay attention to comprehensive review, do more real questions and have their own preparation plans and methods.

Introduction to learning and thinking;

Xueersi International Education Group was established in 2003. In just seven years, it has developed into a well-known and prestigious primary and secondary school training institution in Beijing and even the whole country. Learning and thinking education aims at cultivating excellent education, and has been adhering to the concept of "character education, interesting education and further education", and has trained a large number of outstanding students with both ability and political integrity and excellent grades.

At present, Xueersi Education has set up more than 60 service centers and more than 80 teaching points in Beijing, covering all major cities in Beijing, and the number of students ranks among the best in the field of primary and secondary school training in Beijing. Since 2008, learning and thinking education has opened branches in Tianjin, Shanghai, Wuhan, Guangzhou, Shenzhen and other places, pushing excellent educational concepts and advanced teaching models to the whole country.

Learning and thinking education now provides three types of teaching services: small classroom learning and thinking, Zhikang 1 to 1, and online school learning and thinking. The courses taught include mathematics, physics, chemistry, English and Chinese.