题目内容
某猪场3日龄仔猪发病，主要表现精神沉郁，食欲废绝，排黄色水样稀粪，内含凝乳块，随后仔猪脱水昏迷死亡。剖检可见小肠黏膜充血，出血，胃内有凝乳块，肠系膜淋巴结充血水肿。分离该病病原首选的培养基是（）
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仔猪黄痢疾多发生于7日龄以上的仔猪
1. Filling in the blank .Change the form if necessary.yieldcurbstuffedembarrassedposeWhen she heard it was snowing in the city they were going to, she _____ two more sweaters into her bag.Some people believe that the earth can _____ enough food to support at least twice its present population.He was _____ when he discovered that he didn’t have enough money to pay for the red wine he had ordered.The new system designed to _____ harmful emissions from factories will be put into use soon.There is widespread concern that the rising unemployment may _____ a threat to social stability.
2. Match the words with the definitions.
猪梭菌性肠炎又称为
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