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History, 28.08.2019 06:20 michellemaricioxbyk0
Which of the following did not contribute to increased life expectancy in the early 20th century?
a. more doctors in metropolitan areas
b. antibiotics
c. vaccinations
d. improved sanitation
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Answers: 1
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Which of the following did not contribute to increased life expectancy in the early 20th century? <...
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