最好的验证办法选择几个大学网站，看看他们的covid 19 data ,主要是住院人数。

来源: dw8866 于 2020-10-05 17:11:50 [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.

Change Ad Consent