美國也能研製滅活疫苗，但生產滅活疫苗的能力不夠，不能滿足三億人需求，就與口罩生產一個道理。

來源: 海雲之南於 2020-12-30 18:33:52 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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