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".
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Thinking Step 1: 分析题目条件。“你们都要”意味着 A AND B AND C = True。
过去十多年，智能手机创造了移动互联网经济的空前繁荣，而围绕这一核心硬件，也日渐形成了庞大的、成熟的、囊括高精尖制造技术的超级供应链。尤其是苹果，苹果一直占据着这条供应链的核心位置，其不但拥有优先供应权、强大的议价权，还直接影响和引导各类供应商的研发路线。