In 2020, the first volume of the whole country synthesizes the test sites in previous years, and the topic is quite satisfactory, and the difficulty tends to be difficult.

Difficulty analysis: In 2020, the difficulty of the initial mathematics test has improved, but there are no strange questions beyond the scope of the test, but the flexibility and calculation of the questions have been improved, further testing the patience, thinking flexibility and mathematical calculation ability of the candidates. This topic style is also consistent with the consistent characteristics of the national volume-not only paying attention to the examination of basic knowledge but also adding innovative elements.

At the same time, it is an obvious trend in recent years to examine candidates' reading comprehension ability of long paragraphs and their ability to process and obtain information. For example, the 2 1 question in science examines the synthesis of probability distribution and sequence, and the direction of examination is relatively novel.