发表于2024-11-12
Keeping Warm 2024 pdf epub mobi 电子书
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How do batteries work? Why do people sweat when they are hot? What makes things fall to the ground? This series answers all of these questions and more through factual information and practical investigation, including diagrams and data to help interpret results. Each book includes study questions and a "Can you remember the essentials?" summary.
Keeping Warm 2024 pdf epub mobi 电子书