it is due to the different life expectance of the south vs north,
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送交者: 2cents 于 2014-04-03, 16:16:46:
回答: 切！人挤人有什么舒服的？还寿命长呢。。。 由 meiyou 于 2014-04-03, 14:47:56:
in the U.S., people in the north live longer than in the south on average.
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