题目内容
so it would be a waste money to train【C10】______employees in conversational skills.
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There were very few serious injuries but many minor injuries, which meant that medical treatment was up 300% on the precious year.
After rising steadily for two years, sales leveled out for a year only rise again the following year.
Time lost through injury was half that of the previous year as was the number of serious injuries.
How many days will the workshops last？
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