人口基数,阳性率比值。到目前为止,纽约每三个测试者中有一个阳性。这说明什么?
本帖于 2020-05-03 14:36:01 时间, 由普通用户 fuz 编辑
WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.
Copyright ©1998-2025 wenxuecity.com All rights reserved. Privacy Statement & Terms of Use & User Privacy Protection Policy