10月22日，据英国金融时报报道，特朗普政府正就药品定价问题加大对美国贸易伙伴的攻击力度，准备展开一项新的调查，为新一轮关税攻势奠定基础。
三名知情人士表示，即将展开的调查将根据1974年《贸易法》第301条展开，调查将考虑美国的贸易伙伴是否在药品费用过低的价格。特朗普一再抱怨其他国家支付的药品费用低于美国，并表示他将对拒绝“平等”的国家采取贸易行动。
美国的新调查可能导致对白宫选择的任何产品或商品征收关税，并将重新引发全球贸易紧张局势。在特朗普取消了一些关税威胁并与一些国家达成协议后，全球贸易紧张局势已经平息。
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