All four sets of papers have good features. Take the first set of the sixth question for a comprehensive examination to examine the convergence and divergence of staggered series. This topic examines three methods of staggered sequence. Li Si really put a lot of thought into the problem. Li Si reduced the amount of calculation but added more thinking questions. Generally speaking, it is a little more novel and differentiated than Li Liu's problem.

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The reporter of Future Network found on a website that the video of "Shenti" for postgraduate entrance examination is divided into four parts, with a total duration of more than 2 hours.

In the video, Li Lin, a lecturer in postgraduate mathematics, repeatedly stressed that "we are public videos and can't talk too much. It will be too late to wait until the exam. " "I suggest taking a look at the first and second orders. I passed the first order last year, and the second order is entirely possible. I won't say it. " "You passed the exam, you met the exam, and you got 4 points." "This exam has given me a lot of pressure, so I can't say too much" and other related words.