The fear of smallpox, which terrorized the eighteenth century, has no analogy(likeness) today.
更新时间:2024-11-16 06:56:03 A、occurrenceD
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ThefirstimportantexpositionintheUnitedStateswasheldinPhiladelphiain1876.
Creamoftartar酒石,aweakacid,canbeaddedtoeggwhitestohelpthemfoam泡沫whentheyarebeaten
ThecompanyissuesanannualreporteveryMarch.
Someanimalspantandsweattospeedevaporationofbodymoistureandthuscoolthemselves.
TheSalkvaccineisamajorfactorinthefighttoeradicatepolio.
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