美国大力投资稀土，建成后没什么利润。中国被迫投资生产乙烷，建成后中、俄及海湾国家获取高额利润，美企被挤垮

来源: 21-C 于 2025-06-07 14:50:13 [旧帖] [给我悄悄话] 本文已被阅读：次

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