objective to investigate t. gondii infection in the cats and dogs in guangzhou.
目的了解广州地区猫、犬弓形虫的感染情况。
and the cats and dogs together, or watch the fish swim 15-30 minutes, reduce the pressure.
和猫狗在一起,或观赏游动的鱼儿15-30分钟,可减轻压力。
by july king charles had fled and ill-advised instructions to eradicate all the cats and dogs in the city sent the rat population skyrocketing -- rats carried the fleas that carried the disease.
到了七月,当时的国王查尔斯二世被迫离开伦敦,临走前做出了导致瘟疫扩散更快的错误决定。 他下令宰杀了城中所有的猫狗致使鼠患成灾,而老鼠身上的跳蚤正是传播瘟疫的始作俑者。