标题: 请教一道XDF讲义的逻辑题 [打印本页] 作者: catharine6699 时间: 2010-7-21 22:19 标题: 请教一道XDF讲义的逻辑题 Roland：The alarming fact is that 90 percent of the people in this country now report that they know someone who is unemployed. Sharon: But a normal, moderate level of unemployment is 5 percent, with one out of 20 workers unempolyed. So at any given time if a person knows approximately 50 workers, one or more will very likely be unempolyed.
Sharon's argument is structured to lead to which of the following as a conclusion?
A. The fact that 90 percent of the people know someone who is unemployed is not an indication that unempolyment is abnormally high. B .The current level of unemployment is not moderate. 我觉得答案应该是A啊~ 可是答案是B耶~谁能解释一下？谢谢作者: snail007 时间: 2010-7-22 12:01
同意楼主选项，我也选A