皇家疫苗接种,守护健康,保卫家园!保定市第十七中学
更新时间:2026-03-17 06:46:27 | 人气:337181 | 作者:禄雨彤, |
In 1768, in the midst of a severe smallpox epidemic that killed every tenth inhabitant of the country, Empress Catherine II decides to set a personal example for her subjects: together with her heir, Tsarevich Paul, she is the first to be vaccinated against the terrible disease and declares vaccination mandatory for everyone - despite the court intrigues, peasant revolts and an... (展开全部)
