去年三千多名警官在执行任务时受伤。
More than 3,000 police officers were wounded in the line of duty last year.
在一个相当典型的实验中，受试者在执行任务时被诱导作弊，然后接受采访和观察。
In one fairly typical experiment, subjects were induced to cheat while performing a task, then were interviewed and observed.
他们还发现，使用免提设备的小组在执行任务时比不使用免提设备的小组多犯83%的错误。
They also found that the group using the hands-free kit made 83% more errors in their tasks than those who were not talking.
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