Who are the subjects of the research on the influence of milk powder?
A.Mothers who bottle-feed their babies.
B.Workers in milk power plants and office workers.
C.Nannies and bakers who often handle milk powder.
D.Blue-collar workers who have asthma.
A.英国的英文名称是United
B.韩国的英文名称是Korea
C.新西兰的英文名称是Netherlands
D.加拿大的英文名称是Canada
E.巴西的英文名称是Brazil