Comparing the changes in the score line of the State Grid in the past two years, we can find a significant trend. This year, a batch of electrical engineering students of the State Grid in various provinces have a common undergraduate score line, while the graduate student score line has appeared in most provinces. 
Among all the provinces, the province with the largest change in the cut-off score for undergraduates is Hebei. In 2023, the undergraduate score line of Hebei electrical engineering will be 47, but this year it will reach 575. The increase reached as much as 10 points. Among other provinces, Anhui, Shanxi, and Jilin also have a large number of undergraduate scores, with an increase of 9 points, 9 points, and 10 points, respectively. At the same time, the province with the largest change in the graduate score line was Jiangxi. In 2023, the score line for electrician graduate students in Jiangxi will be 68, and this year it will reach 545. The decline reached as much as 13 points. Liaoning, Chongqing, Jilin and other provinces also have a large number of graduate student scores, with a decrease of 95, 9 and 8. 
There are many reasons for the change in the cut-off scores in these provinces. First of all, the national examination situation has had an impact on the change of the score line of the State Grid. Due to the increase in the number of candidates this year, the overall score is generally **, which has also led to the ** of a group of undergraduate students in various provinces of the State Grid electrical engineering. In terms of graduate students, due to the difficulty of this year's exam, the score line of most provinces has appeared. Secondly, the change of the score line in each province is also affected by the specific local situation. For example, the large cut-off score for electrical engineering in Hebei may be related to the development of the local power industry and the increase in employment opportunities. The ** score line of Jiangxi electrical engineering graduate students may be related to the expansion of local graduate enrollment and the increase in the difficulty of the examination. 
To sum up, the change of the score line of the State Grid is affected by a variety of factors. In order to better adapt to these changes, it is recommended that candidates should not only pay attention to the mastery of knowledge when preparing for the exam, but also pay attention to the dynamics of the exam and the specific local situation, understand the recruitment policy and social needs, and be fully prepared. Candidates need to be flexible in responding to various situations and develop their own preparation strategies and career plans.