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Are primary school textbooks fully understood or all-pass?
If you want to live a mediocre life, then your choice of full solution and all pass is the same, which has little effect on your grades. If you want to get into the top ten of your class or even your grade, I suggest you use nudge. Guidance belongs to the combination of coaching materials and pays attention to methods. It is very helpful to consolidate knowledge and improve grades. It is highly recommended. Hope to adopt! ! ! !