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Mathematics class playback
If you can't work hard in the online class and think the content of the online class is ok, you can do your homework first, provided that the online class is open.

You should have a steelyard in your heart. You can choose what you think is helpful to you. If you will do your math homework carefully, instead of writing your homework for handing it in, you can choose. After all, mathematics is very important.

If you are just afraid of the teacher's investigation, you don't have to pick up the watermelon and lose the sesame seeds. Choose to listen to online classes.