Both are fine.

Inference can make several questions according to one question, and thinking improvement training can exercise thinking ability and develop thinking so as to achieve the effect of inference. In other words, we are constantly repeating the problem-solving skills we have learned and strengthening them through repeated practice. Thinking improvement training is to solve some complicated and difficult problems on the basis of mastering basic problem-solving skills. Thinking training is more challenging. What kind of practice methods do you adopt? It depends on the specific knowledge. Do what you can, and you won't be depressed. Learn step by step, don't worry too much.