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Title: Life expectancy at birth in the United States has more than doubled since 1850. (True or false?) Post by: Tidy on Jun 20, 2015 Life expectancy at birth in the United States has more than doubled since 1850.
True or false? Title: Re: Life expectancy at birth in the United States has more than doubled since 1850. (True or false?) Post by: VincenzoD on Aug 2, 2015 Content hidden
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