你这里面死亡率的数据小数点要向左移一位。应为0.18和0.04。

来源: 阿明. 于 2021-01-05 12:50:50 [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