the wireless carrier offering the iPhone in the United States, had a more reliable network, said Andrew Yu, mobile devices platform project manager at M.I.T.
				出自-2013年6月阅读原文
				In a division of electronic engineers, who were designing equipments so advanced that they work in teams of up to 150, co-workers and managers were asked to nominate the standouts- the stars in productivity and effectiveness
				出自-2013年6月听力原文
				A prime example Schweitzer and his colleagues cite is the 2004 collapse of energy-trading giant Enron, where managers used financial incentives to motivate salesmen to meet specific revenue goals.
				出自-2012年6月阅读原文