Vaccinations were first used in what time period?
select one:
a. 200-400 bc
b. 1...
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Biology, 18.11.2019 13:31 sergiog6833
Vaccinations were first used in what time period?
select one:
a. 200-400 bc
b. 1000-1200
c. 1700-1800
d. 1990-2000
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Answers: 3
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