Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

Modern life makes us tired, right? But research from societies in Africa and South America suggests people in the ancient ...

此外，美国 自3月起对大部分加拿大进口产品征收了25%的全面关税，其中能源、关键矿产和钾肥的关税税率为10%。 与此同时，加拿大与中国的贸易争端也在加剧，北京对总值37亿加元的加拿大进口产品实施了报复性关税，涉及菜籽油、猪肉和海鲜等关键出口商品。这是对 加拿大去年对中国电动汽车征收100%关税、对中国钢铁和铝产品征收25%关税 的回应。