"We'd have to do some more analysis, but it's probably bronze," she says. "Also we think it was possibly gilded, which would be a coating of gold over the top."
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彼得森國際經濟研究所的統計學家格雷格·奧克萊爾（Greg Auclair）告訴BBC事實查核，過去一年美國的外國投資確實有所增加。
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