有點明白了，是從買到產品再賣出的角度。石油儲存很昂貴吧。

來源: Rockeymountain 於 2020-04-20 11:51:22 [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.

Change Ad Consent