mock-infect \ mock-virus

来源：学生作业帮编辑：拍题作业网作业帮分类：英语作业时间：2024/04/30 06:21:43

mock-infect \ mock-virus
The piglets were randomly assigned to one of four treatment groups:mockinfected
；PRRSV-infected ； PRCV-infected；and PRCV/PRRSV-infected.

小猪随机分为四组：对照组、猪繁殖与呼吸综合征病毒感染组、猪呼吸道冠状病毒感染组及两种病毒混合感染组
再问：这个对照是阳性对照还是阴性对照？谢谢。
再答：自然是阴性对照组了

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