为什么只统计有症状的感染者？其实很多无症状的只是处在感染早期。

来源: 阿明. 于 2021-07-30 18:01:08 [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.