Homework support group, you can search or scan the code to find the answer (that is, scan the bar code behind the cover) (you can find the basic training of homework papers in winter and summer vacations, buy exercise books), or you can take photos and upload the answer.

2.

Homework help, you can take photos to search for topics, and you can also search for English language compositions and word queries. These two softwares can search the answers of homework textbooks in primary school, junior high school and senior high school, but not in universities. There are some things that can't be searched, such as unknown homework. I have searched and deleted a lot of homework search software, and finally these two are left. I have used it for several years, and the effect is not bad (but I have been using the old version). As for what apes search questions, Afan questions can also search questions.

3.

Quick homework: you can scan the code to search all kinds of learning materials.

4.

Baidu Library: All kinds of documents, you can scan the code to search the whole teaching material analysis.