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| Good or Bad:Inventions | |
| 摘 要： | “Life is speeding up.Everyone is getting unwell.”This may sound like something everyone would say today.But infact,an unknown citizen who lived in Rome in AD 52 wrote it.We all love new inventions.They are exciting,amazing and caneven change our life.Bu… |
| 本文献已被 CNKI 等数据库收录！ | |