生活费指数指各邮政区域间生活费用的对照,100为平均数,200指平均数的两倍,50为平均数的一半,以此类推。
The cost of living index compares cost of living among Zips with "100" being average, 200 being twice the average, and 50 being half the average and so on.
美国养猪生产一半以上都是排名前25个最大的实体企业生产的,那么他们的平均数怎么会和19差很多呢?
Half of U. s production is produced by the top 25 largest entities, how can they on average be much different then 19.
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