If the current trend continues, black farmers in the United States may be extinct by the end of this decade...如果当前趋势继续发展下去,美国的黑人农民将在这个十年末不复存在。...efforts to build up the prestige of the United Nations...为树立联合国的威望所作的努力I sc...
As a boy he was a Manchester United fan.小时候,他是曼联队的球迷。Kernaghan missed the United game after he ricked his neck.克纳汉因为扭伤脖子而错过了联赛。I scrolled down to find "United States of America".我向下滚动文档搜索“美利坚合众国”。...
目的:评价异 丁基 壳聚糖作为生物材料的安全性.Objective To evaluate the bio compatibility of isobutyl - chitosan as a material.使用二异丁基-二甲氧基硅烷, DQ催化剂的氢调敏感性更好.With di - iso - butyl dimethoxy DIBS, DQ catalyst was more sensitive to hydrogen regul...