The Flatiron School, where people pay to learn programming, started as one of the many coding bootcamps that's become popular for adults looking for a career change.
This is apparently the reason McDonald's restricts the availability of its popular McRib—a marketing gimmick that has turned the pork sandwich into an object of obsession.
Among the most popular: paternity and kinship testing , which adopted children can use to find their biological relatives and families can use to track down kids put up for adoption.
最受欢迎的 DNA 测是父子和血检测,被收养的孩子可以利用它找到自己的血亲属,家庭也可以用它追踪到被收养的孩子。