（作者单位：北京大学考古文博学院）
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昆士兰州贸易投资局国际业务总经理安娜·费代莱什说，进博会极具专业性和高水准，希望今年有更多从未到过中国的企业通过此平台深入了解中国市场。。同城约会对此有专业解读
Conservator Jonathan Carr said the Thetford find was made "from extremely thin sheets of metal which have become extremely brittle after 2,000 years in the ground".
To discover more fascinating science content, head to bbc.co.uk, search for BBC Inside Science and follow the links to The Open University.，推荐阅读Line官方版本下载获取更多信息