育肥猪，3月龄，口、鼻流白色泡沫，颈部发红肿胀，张口呼吸，常作犬坐姿势，急性死亡。剖检见颈部皮下呈胶冻状，肺脏水肿、出血.预防该病的措施是
A
暂无解析
Thegirlwhofoundtheringreceivedagenerous_____offivepounds.
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改写病句：Peterorderedthemealforhisfriendsrangingfromfriedshrimptochoppedbeef.
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