Huanggang secret volume is better. The questions of Huanggang secret volume are more complicated, and students above average may need to use their brains more. For the top students, just use your head a little. It's not that complicated. It may be a little unclear to almost the same students, but it's actually not bad. The key is that there are more or less similar questions in the college entrance examination questions. Moreover, some problems of Huanggang Secret Volume are still worthy of attention, so Huanggang Secret Volume is generally good and can be recommended to everyone.