In many places in China, the old over 90 ____ (take good care of) not only by their family but also by the government.
历史上,国际联盟把虎门销烟开始的6月3日定为“国际禁烟日”,1987年联合国又把虎门销烟完成的翌日6月26日定为“国际禁毒日”.下列与虎门销烟有关的人物是( )