Excuse me, do you want to ask "where is the wholesale of synchronous practice in Naqu primary school?" The following channels can be wholesale:

1. Education publishing houses, such as People's Education Publishing House, will have corresponding textbooks and workbooks for wholesale.

2. Education stores: For example, some education e-commerce or offline education stores also have such synchronized exercise books.

3. Education bureau or school: You can contact the education bureau or school to see if there are any relevant procurement plans or recommendations.