4倍, 人口基數一樣嗎？不懂科學別亂引用專業名詞以免別人把你當不好的什麽人看待。

來源: 多哥於 2020-04-16 00:18:46 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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