What is the process of learning to master chalk?
Course skills. Official website, a chalk app, introduced that the course of learning masters is to teach course skills. Chalk APP is an educational product of Beijing Chalk Blue Sky Technology Co., Ltd. and a vocational training platform to promote scientific and technological innovation. Founded on 20 15, it insists on putting science and technology first, and uses internet technology to help vocational education innovation and provide users with products and services.