Why do people invent? How do inventors know something will work? Can children invent? Featuring the popular Frequently Asked Questions (FAQ) format often used on the Internet, along with ingenious activities and fascinating facts, this book answers young readers' questions and provides all the inspiration they'll need to come up with some bright ideas of their own
發表於2024-11-08
Inventions 2024 pdf epub mobi 電子書 下載
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Inventions 2024 pdf epub mobi 電子書 下載