阎博士做一个 COVID-20，再做一个COVID-21，可以证明自己的能力。

来源: 遍野无尘于 2020-08-03 05:39:52 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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阎博士做一个 COVID-20，再做一个COVID-21， 可以证明自己的能力。