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Life expectancy in the united states has increased by _____ years during the twentieth century.
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Life expectancy in the united states has increased by _____ years during the twentieth century.
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Jun 5, 2018
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Life expectancy in the united states has increased by _____ years during the twentieth century.
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Wei Song
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The answer is 30 years!
Goodluck :-)
Elyas
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Jun 10, 2018
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Elyas
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