六个月后，选择突然戒烟的人中有超过五分之一的人坚持了下来，而另一组只有七分之一。
Six months out, more people who had quit abruptly had stuck with it—more than one-fifth of them, compared to about one-seventh in the other group.
第三篇及随后的几篇文章将针对一组实际的业务情形就上述六个问题中的每一个进行讨论。
The third and subsequent installments will address each of the six questions above for a collection of actual business scenarios.
第二组除了在参与节食六个月后开始体能锻炼外，其他与前一组相同。
The second arm was the same, except physical activity started six months after beginning the diet.
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