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教室是学校的免费服务
The classroom is a free service for schools. A learning library is available to you, for free.
Thousands of interactive exercises, videos, and articles at your fingertips. Study math, economics, (arithmetic, algebra, geometry, trigonometry, statistics, calculus), humanities (US history, US government, and politics), and more (including computer science principles) and much, much more. Connect with the academy and do assignments on the go.
最新版本3.0更新日志
Last updated on 2020年09月15日
Learning online course
翻译中...
Kha Academy
3.0 by Rosamie Apps Studio INC
2020年09月15日