It's too difficult. I am a repeat student in senior four. I just took the college entrance examination twice. This year's math is very stressful for repeat students, not to mention strange questions. It took 40 minutes to complete the selection last year, and this year the sky spent 1 hour. The probability of solving the problem is too deceptive, but the amount of space geometry calculation that can be done is too large, and the cone can't understand the problem-solving calculation at all. The problem is really too big to finish.