- 语言：英语
- 格式：True PDF （文字可复制）
- 大小：35.9MB
- 页码：100
- 清晰度：★★★★★
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BBC Knowledge Magazine - the new magazine about science, nature and history...invention, innovation and more. Sir Francis Bacon was right about knowledge. It is power. Ben Franklin agreed, An investment in knowledge always pays the best interest.
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