After years of accumulation, BBK learning machine has almost the most abundant and perfect teaching auxiliary resources on the market, covering curriculum resources from primary school to high school; In terms of disciplines, BBK basically covers the national mainstream textbooks;
BBK has a one-on-one function, where real people answer questions online and send free time every month. If it exceeds this time, there will be a charge.
Excellent school learning machine, focusing on three subjects except language number. They have found many educational institutions, cooperated with famous teachers to develop courses and have a very perfect curriculum system.