Some structures are so strong that they remain standing hundreds of years after they were built. These structures have even survived wars and natural disasters. What technology was employed to make these structures super strong? Read on to find out. In this ebook, you will also learn about the names and locations of these structures from the olden times. Grab a copy now!
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语言 英语 ● 格式 EPUB ● 网页 240 ● ISBN 9781541965607 ● 出版者 Speedy Publishing LLC ● 发布时间 2019 ● 下载 3 时 ● 货币 EUR ● ID 9968978 ● 复制保护 Adobe DRM
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