When does the online class in Nanyang dengzhou city start?

When does the online class in Nanyang dengzhou city start? On September 1 day, all kinds of schools in dengzhou city started online teaching and returned to school in four batches at the same time. The first batch: September 1 day, the third and third grades will return to school. The second batch: On September 7th, Grade One, Grade Two, Grade One and Grade Two returned to school. The third batch: September 13, the whole primary school. ...