What was the average age of the runners at the beginning of the survey?

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问题 What was the average age of the runners at the beginning of the survey?

A group of more than 300 runners over the age of 50 were tracked by Stanford University researchers starting in 1984. Their average age was 58 and most had been running for about 10 years. Now they are in their 70s and 80s. They were compared to a control group of non-runners.

选项 A、50
B、58
C、68

答案B

解析新闻中提到调查在1984年开始时他们的平均年龄是58岁。

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本试题收录于： B类竞赛（英语专业本科专科）题库大学生英语竞赛（NECCS）分类

B类竞赛（英语专业本科专科）

大学生英语竞赛（NECCS）

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What was the average age of the runners at the beginning of the survey?

B类竞赛（英语专业本科专科）

大学生英语竞赛（NECCS）

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Ishouldhavegonetothepartyoftheirs,but_________.

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