3日龄仔猪群,腹泻,排黄色浆液状稀便,含凝乳小片,迅速死亡,剖检见十二指肠黏膜卡他性炎症,取病猪小肠前段黏膜接种麦康凯培养基,长出圆形红色菌落,该病最可能的诊断是
B
暂无解析
Duringthetouristseason,therearemanypeoplewanderinginthiscitytoseetheoldcastles_____inthesixteenthcentury.
______whichwaytotake,thelittleboybehavedlikearealgentlemanwhocomfortedhissisterfromtimetotime.