（5分48秒-6分32秒）What did the 2008 national study on the changing workforce show? A.They have lower levels of stress?and higher levels of mental health B.Deep, flexible practices?actually lowered operating costs?and increased adaptability?in a global service economy C.Employees?in flexible and effective workplaces?are more engaged with their work D.They’re more satisfied and more loyal

（5分48秒-6分32秒）What did the 2008 national study on the changing workforce show? A.They have lower levels of stress?and higher levels of mental health B.Deep, flexible practices?actually lowered operating costs?and increased adaptability?in a global service economy C.Employees?in flexible and effective workplaces?are more engaged with their work D.They’re more satisfied and more loyal

正确答案：ACD