등교전 필독
http://school.cbe.go.kr/_class/board/view/gukwon-e/2020/G02020605/380061/9861655?
https://us04web.zoom.us/j/6623595530?pwd=WlB4eVVPcU9STUdoMDNta082cG1DQT09
비번 12345