人患猪流感的病例比较罕见但是可以发生在与猪接触的人群并且能在人与人之间传播。

Human cases of swine flu are uncommon but can happen in people who are around pigs and can be spread from person to person.

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这是从人的生命活动的本质出发，在动物与人的生产的比较中，来考察美的产生，揭示美的规律。

Starting from the nature of human activities, Marx observed the production of beauty and disclosed the law of beauty through a comparison between the production of human beings and that of animals.

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人外泌汗腺细胞的克隆形成率为7.3%，与人胎儿角质形成细胞（7.7%）比较差异无统计学意义（P>0·05）。

There was no obvious difference in the cell clone efficiency between human fetal eccrine sweat gland cells (7.3%) and human fetal keratinocytes (7.7 %, P>0.05).

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