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数据显示，在去年4月中国实施出口管制后的八个月内，中国对美出口的钇类产品仅17吨，而此前八个月相关出口量为333吨，降幅极为显著。
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Tony Jolliffe BBC，详情可参考同城约会
The BBC has apologised and called what happened "a serious mistake", saying Davie has instructed the Executive Complaints Unit (ECU) to "complete a fast-tracked investigation and provide a full response to complainants".
Error-Diffusion Dithering