• 可能由于1977年意外:当时苏联偶然泄露株季节性H1N1流感病毒此后病毒便通常流行的H3N2流感病毒一起扩散开来。

    We have this immunity because of a biological accident: in 1977, an H1N1 flu virus was accidentally released in the Soviet Union and has circulated ever since, alongside the regular H3N2 strains.

    youdao

  • 数据安全——数据安全是指数采集传输存储交换过程中偶然或者恶意原因遭受破坏更改泄露

    Data security - data security refers to the data in the collection, transmission, storage, exchange process, non accidental or malicious reasons for damage, change, disclosure.

    youdao

  • 数据安全——数据安全是指数采集传输存储交换过程中偶然或者恶意原因遭受破坏更改泄露

    Data security - data security refers to the data in the collection, transmission, storage, exchange process, non accidental or malicious reasons for damage, change, disclosure.

    youdao

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