单项选择题
A.Data collection. B.Training consultancy. C.Corporate management. D.Information processing.
A.Change their jobs. B.Earn more money. C.Reduce their working hours. D.Strengthen the government’s role.
A.Many of them found it difficult to exercise on a plane. B.Many of them were concerned with their well-being. C.Not many of them chose to do what she did. D.Not many of them understood the program.