1, there are many resources. 2 1 Education Network official website is the top primary and secondary education resource network in China, which provides downloads of courseware, lesson plans, lesson plans, lesson preparation materials, test paper exercises and other resources of all versions of primary and secondary school textbooks in China.

2, the update speed is fast. Official website, 2 1 Education Network, quickly update the question bank, keep up with the current situation, and quickly update the latest questions on the market. 2 1 Century Education Network is a well-known education website under Shenzhen 21st Century Education Co., Ltd. ..