Math II of 17 is not simple. One of the postgraduate entrance examinations is to take math one, and the other is to take math two. The one who did well in the exam was Math One. The one who took the master's degree was Math II. The second period of mathematics is a little simpler than the first period. But this gap is not too big. In fact, every year, Math II is basically like this. 17 is just a little simpler, and the gap is not too big. If you don't study well at ordinary times, 17 won't get high marks in Math II.

Compared with Math 1, Math 2 is not as difficult as Math 1, but it is more difficult than Math 3. From the perspective of the breadth of investigation, mathematics is small, and there is no need to test probability, so the difficulty is simpler than mathematics.