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美国海关发布加拿大商品关税执行指引
US Customs and Border Protection issues guidance on tariffs for Canadian goods
The new tariffs could strain US-Canada trade relations, disrupt supply chains, and potentially lead to retaliatory measures from Canada.
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更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力