a The Staff's Perception of Work Value and Internal service 2. McDonald's has once employed in U.s A one out of every thirty workers B one out of every thirteen graduates C less than 8% of the entire work force D at least 8% of the entire work force 旅游英语 Unit Ten--Text旅游英语 2. McDonald’s has once employed ____ in U.S. A. one out of every thirty workers B. one out of every thirteen graduates C. less than 8% of the entire work force D. at least 8% of the entire work force The Staff’s Perception of Work Value and Internal Service Unit Ten--Text