要在发达国家且人口类同的范畴里比。

来源: AP33912 于 2023-12-19 10:11:00 [博客] [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.