1. Li Lin four sets of volumes + six sets of volumes Difficulty coefficient:★★★

Overall Li Lin four sets of volumes difficulty than the Li Lin six sets of volumes a little lower, slightly higher than or equal to the difficulty of the real problems of the exams, the six sets of volumes will be individual questions with innovative thinking and innovative solutions.

Overall the type of questions most in line with the style of the examination, priority recommended.

2. HITU beyond 23+22 Difficulty Coefficient:★★★★

HITU's volume style is diverse, many questions are examined to the easy to ignore the blind spot of the review, which is why there is a certain degree of difficulty, but the topic of the great, difficult and refined, some questions are worth repeating to figure out more than one problem, a problem with a multi-solution, there is time to do a 21 years of the first, priority recommendation.

3. Zhang Yu four sets of volumes + eight sets of volumes (high score chapter, improve the chapter) difficulty factor: between ★★★★★★ to ★★★★

Personally, I think that the four sets of volumes is stronger than the high score chapter is stronger than the chapter to improve the chapter, the high score chapter is the most difficult, the individual questions are very difficult to think because the number of volumes is enough to add up to 20 sets of these, so basically all of the knowledge points can be covered, more comprehensive, some questions were more computationally intensive and very testing.

4. Li Yanfang three sets of volume coefficient of difficulty:★★★★★

Super difficult, in three hours to do the average score of one hundred even if a great success, but the interesting thing is that although the topic is difficult, but some of the solutions and ideas are still worthy of reference, can be used to anti-stress or their own review of the over-confidence in the time to splash some cold water.

5. Yu Bing Sen five sets of paper difficulty coefficient: ★★★★★

Moderate, I did not do what is very bright place, but not bad, may be the reason that this teacher teaches probability theory, probability theory and mathematical statistics, there are some relatively new questions, calculus and linear algebra on the ordinary it.

6. Li Yongle ultimate three sets of volume coefficient of difficulty:★★★

Also ordinary, simulation volume I think and the teacher's main lectures are still very relevant, three sets of volume in the side of the topic of a few line generation is worth to think about, but last year, I found the answer to the existence of a number of errors, which led to me is not very much like the whole set of volumes. (Strengthen the six sets of volume is not recommended to start, too simple, a do you know did not make an effort to give the students out of the problem, many questions from the review of the book directly copied over, the kind of garbage)

7. Tang Jiafeng strengthen the ten sets of volume coefficient of difficulty:★★★★

There is a say a, Tang Jiafeng in addition to the basic course is good, from the beginning of the strengthening I think it is very strange to strengthen the volume is also, difficult Just difficult in too complex and cumbersome amount of calculations, and even some superlative content, last year Tang Jiafeng's prediction paper has not been out, but from the strengthened ten sets of paper quality alone, is not very recommended to start.

In addition to this, Mr. Wu Zhongxiang's selective skills class, Mr. Kria's line generation and probability of the brain class, Mr. Li Yongle's line generation of checking and filling in the gaps, the B station heart of a long time, Mr. Xiaoyuan's topic of easy to miss the difficult points to explain, I highly recommend, these courses can be said to be the late stage of the study and even late in the treasure of the late stage of the study, as for a series of sprint class, I think it can be used, not as good as in the brush brush I'm not sure if I'm going to be able to do that, but I'm sure I'll be able to do it.