A membrane-bound nuclease directly cleaves phage DNA during genome injection

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r = S.get(url, timeout=10, allow_redirects=True)

The supermarket said it would stop sourcing fresh, chilled and frozen mackerel by 29 April, as well as tinned mackerel once their current stocks have been sold.

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不同的结构,也让麦当劳和肯德基逐步走向了不同的扩张道路。

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