- Covers key science topics in Life Science, Physical Science, Earth/Space Science, and Techonology and Society
- The contents are based on th national curriculum of the US and Canada
- Colorful photographs visualize the key concepts for learners' deeper and easier understanding
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개발자 연락처 :
개발자 이메일 : ebizteam2000@gmail.com
Oxirgi yangilanish
29-mar, 2024