同样是石油，石油和石油是不一样的；比如大庆的石油含硫特高，跟中东的石油没法比。

来源: 走资派还在走于 2023-05-02 21:27:48 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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