有证据表明，包括非灵长类的一些动物可能是病毒宿主。

There is evidence that some animals, including non-primates, may act as reservoirs.

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这个模型由5个类组成，其中的4个是要持久化的类，非持久化类oradersystem当做这个对象模型的宿主。

The model is made up of five classes, four of which are persistent. The non-persistent OrderSystem class serves as the root of the object model.

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宿主可以指定在非关键代码区域出现线程强制中止时所采取的策略操作。

The host can specify policy actions to be take when a rude thread abort occurs in a non-critical region of code.

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